For me, the bikes serve an entirely different purpose.

Allez DSW Sprint SL - this is a fairly fast and aerodynamic bike that's great for going faster at a certain wattage...It's surprisingly comfortable, stiff, very fast in the corners, and with a little engine work, quite the climbing machine. The only problem is you will have to always hit your brakes on downhills in group rides. Rollers are a breeze on this machine, just stay in the drops and drop the hammer down. On certain days, you do wish for an extra climbing gear, but then you remind yourself that pain makes you faster...and you feel good about it.

Fuji Cross - currently outfitted with some 32mm Roubaix Pro tires - this is a laid back cruising machine for the towpath and/or exploring. I'll bring this one on vacations where I don't know where I'll end up. I also have some 32mm knobby tires in the event that a world flood happens and everything turns to mud. This bike also typically lives on my indoor trainer about 90% of the time.

I've ended up with these two bikes after years of trying different things. I've had mtb's, 29ers, gravel bikes, endurance bikes, etc etc - and these are just the two bikes that do everything I enjoy doing.