Let's see - here are the dates for the bikes I currently have. Bought the tandem in '73 used (it was about 8 years old at the time), bought my main road bike used in '00 when it was 10 years old, bought my BF folder new in '94, and was given my touring bike in '08 (it's an '84 model).

+1

And mine is downstairs right now.

Sounds like a lot of people aren't impressed enough with the latest greatest to actually buy it.

I hope to keep my bike as long as possible. I like the way it rides, it's nimble, and I see no reason to change it.

I have new (ish) bicycles too.

Just because we have older bicycles doesn't mean we can't also have a collection of newer bicycles at the same time.

More like they are not impressed enough to replace a perfectly good bike with it; I know I'm not...

I've been riding the same Litespeed titanium frame/Look carbon fork/stem/bars/headset since 1997 which I had built from a frameset.

Still fits great and rides nice, and with inflation updates to newer components run $4000 less than buying a similarly equipped new bike.

In 1998 I folded an under-tensioned front wheel and my rear wasn't staying true at ~140 pounds so I rebuilt them with 2.0/1.5mm spokes except 2.0/1.8mm rear drive side.

In 2000 I moved from 8 to 9 cogs with an index cam and freehub changes after Campagnolo discontinued the 13-14-15-16-17-18-19-21 cassette which was my favorite.

In 2006 I wore out my big ring + bottom bracket and swapped 50-40-30 for 50-34 because 34x23 was the same low as 30x21 and two rings were better than three. Excessive front shifting meant that was a mistake, but I stuck with it.

In 2010 I cracked my classic Selle Italia Turbomatic and got the current model, which sat higher on its rails so I needed to replace my classic C-Record aeropost with a round Campagnolo titanium model.

I switched to training with power then fell off the wagon after I lost riding time due to leg surgery and my PowerTap died. I sent the PowerTap off for a rebuild and forgot about it.

In 2012 I broke a discontinued shifter spring and moved on to 10 cogs with NOS 2010 Campagnolo Centaur Carbon levers, pre-2006 Record Titanium triple derailleurs, and 50-39-30 FSA hollow carbon SLK-Light crank.

In 2013 I broke a brake return spring again. While replaceable, I took the opportunity to install 2001-2006 Record Titanium brakes with hidden pivot bolts.

In 2014 I built my PowerTap and a matching silver/carbon front hub into a wheelset with retro-reflective HALO powder coated Velocity Fusions and got back with the program.

I broke my saddle clamp, switched to a Velo Orange, broke the under-sized front clamp bolt twice with the second time at 145 pounds, and switched to a Nitto which takes way too much torque in the saddle clamp bolt so the next time I mess with my saddle it's out in favor of a rare Record SP-10RE which is round with a C-Record saddle clamp. For the previous two decades I mistakenly believed seatposts were simple things that just worked...

In 2016 I realized that with middle-age my patience for riding now outlasts daylight and device batteries, so I'm building a front wheel with a SON28 dynamo hub to run lights and USB-Werk to charge phone/GPS.

I'd like bars a little narrower, and shallower drops than I have with my deep-drop Cinelli 66 bars so I'll also move to a 1" threadless fork.

I'll probably get a local frame builder to add rack eyelets so I can move mine down and back from where it ends up with seat stay P-clamps.

I am going to go out on a limb here and state that your bike is really well thought out.
I have never heard of anybody building out a wheel with a usb hub. Impressive.

If I could be a bit of a smart ass, what is the purpose for this thread? It is like asking "how long do you keep a car?" or "what color should my car or bike be?"

For people to amuse themselves with fond memories of either their favorite bike or gear lust while they sit in front of a computer instead of riding.

Well, it helps to remember that most threads here are not really about the bikes, but about us - even the technical threads have a tendency to turn personal.

I'm fairly sentimental, and in many cases something of a pack rat, keeping small things long after they've been replaced by newer, more serviceable versions. But bikes take up a lot of room (I don't have a garage - all three are in my entry hall), and can potentially fetch some meaningful cash, so when I decided to get a new race bike, I didn't think twice about getting rid of the first one.

MTB: since 2004 (bought new)
Road: since 2005 (bought new)
Hybrid: since 2014 (bought used)
Endurance Road: 2015 (Warranty replacement from bike purchased in 2004)

So a solid 12 years. And I have zero intentions of getting rid of any at the moment.

Basically, they're at a point where I can sell them and get nothing or I can keep them and ride them into the ground.

The kind of riding I do just does not justify the latest and greatest. Even when these bikes were purchased new they weren't high end. The road and original endurance road did have 9 speed 105 components though. And the MTB had mostly Deore components. So they were decent, but not high end.

Yes.

Varies a lot. I keep tandems usually 10 years and some road bikes that long. Currently, I have a 5 year old and a 1 year old bike and hav been thinking of getting a new frame to replace the 5 year old and move the parts over to the new frame. They're Campy Record 11 speed and good is new

Go by a high end shop on a weekend. I'll bet you see lots of people looking and buying.

Another thing is many people are happy with their frames but do upgrades. So an old bike really becomes new with all the latest.

I've got a new bike with Di2 and a 24 yo steel. If someone has a solid bike they like and it fits, they might keep that forever. I bet most Ti owners hang on to thirds forever.

I keep until it's time to replace. Having recently established an N+0 philosophy that means my trusty, now back-up 35 y/o Fuji Tourer is gone with the next new road bike.

I'm definitely going to be in the crowd that buys used bikes only and slightly older. I've got a 2013 Synapse with 105 components and I was looking at a 2011 Scott Carbon CR1 Pro with Ultegra components.. this was a $3000 bike that's now used for $1,000?.. and is 16lbs? I like the buy a bike that's 97% as good as the latest and greatest at 30% of its initial cost. I will definitely keep up with this trend.