Has anyone brung any pie yet ?

To walmart? Not that I've heard. My girlfriend has brought donuts in on a couple of occasions. :)

Almost 20,000 posts on the site, and you still can't see yourself as a cycling enthusiast? Why is that such a dirty word?

For what it's worth, the only trouble I've had with valves have all been on Schraeder valved tubes. There would sometimes be a tear near the base of the valve. I never had this problem with Presta valves. But this is only the observation of a single person.

My experience with Dunlop valves has been more limited since I only encountered one about 4 months ago after buying a used commuter bike in Sweden. I like them! After replacing my tires soon after acquisition, I've only had to give a few pump strokes to one tire, the one wearing the probably 20 year old tube of unknown history. I like that the whole venting mechanism can be tightened with a nut much larger in diameter than the knurled part on the Presta variety.

Oh I like cycling alright, and 20,000 posts might make me a BF enthusiast, but I am disappointed, if not disgusted, with so many cycling enthusiasts' posts based on:
club house snobbery (i.e. bashing of bicyclists and the bikes they ride that don't fit the poster's cycling profile), need for speed recommendations in all things cycling related, and/or obsessive quest for possession or showing off of the ultimate (i.e. allegedly fastest, lightest, or most efficient)pricey products hawked by LBS personnel.

Yes; out of touch with any cycling reality that doesn't fit their own cycling profile, or scenario.

A fun part of this is that more and more people are using sealant as tubeless tires systems become more widely adopted...

If I spend $2.79 apiece on presta tubes am I still elitist? :)

Only if you think it makes you a better or smarter cyclist than those who use tubes of "obscure" size (i.e. anything wider than 23mm) and/or anybody who rides any bike with the wrong kinda valve. :):)

I bought some skinny presta tubes at my LBS and I paid $ 5.99 per tube.

We should all go back to riding solid rubber tubes in "non obscure sizes" and then nobody would be arguing about what type of valve to use for a commuting bike.:)

Presta vavles are hardly complicated. In fact they are easy, and really foolproof.

Nobody sensible would argue that one type of valve is better or worse than another for commuting based on riding quality; the only difference would be availability/compatibility of refill air if the rider doesn't carry the right size pump.

one only needs a single good reason

Yep. I used to have that as a reason. Back in the day before a Silca floor pump came in to my life :) Of course, those little adapters work fine for most gas station fillers also.

I still drill out all my MTB rims for the just in case scenarios where I'm tubeless and flatted out in the sticks but not far of a hike from a Walmart or Fred Meyer.

I've never ever pumped up my bike at a gas station. I commute on Presta and Schrader valves. Not being able to use Presta valves isn't exactly something to brag about. :)

Not ever pumping up your bike at a gas station isn't exactly something to brag about, eh?

I don't think this is correct. a gas station pump requires a pin (in the valve) to push up into the chuck pin releasing air from the gas station pump. (valve pin and chuck pin press against each other and open each other's valve allowing transfer of air) in the case of presta + adapter there's no object that protrudes up through the adapter to push that gas station chuck pin. there is no transfer of air

Me too. I never use a gas station for airing up my tires. I carry a pump. here in my area gas stations charge minimum of 50-75 cents for air.

Being independent from your surroundings sure is. What good is being able to use a gas station to pump up your tire if your flat occurs nowhere near one? It's why everyone should carry a pump or CO2.

Why not all three? Carrying a pump is nearly a no-brainer. Then add a valve adapter at pretty much no cost ($1.50 plus the burden of carrying another gram). Then maybe a CO2 cartridge as well, though I haven't felt the need yet.

In other words, why not carry a valve adapter as a supplement to your readiness? The benefit may be small but the cost is even smaller. Just don't use it as your primary plan to take care of your tires on the road.

I'm pretty sure I still have one of those adapters in my toolbag, left over from the days when I didn't know most mini-pumps had reversible heads to cover both valve styles. My pump has never failed to do the job, so like you, I haven't felt the need for CO2.

I'm thinking, something could happen to the pump. Sometimes I forget to bring it. It could break. Having a gas station option doesn't hurt! I think I'll park one on one of my tires.

I suppose you will be quite unhappy if one day your pump does fail to do its job and you are unprepared to deal with your unexpected situation. Especially if you have to walk past a gas station with your unrideable bicycle.

This is a great idea. I have 5 or so adapters in a little bin in my shop. I used them for filling tires from my compressor. I had never thought about carrying one with me when I ride.

Those things are a bear to change: Fitting Penny Farthing tyre - YouTube

And then there is the perennial argument about whether black or red rubber is more fitting for the enthusiast.