I use to be a hardcore mountain biker, the camelbak was my best friend during that time. I've since converted to being a roadie.

I don't know why some of the roadie crowd frowns on the camelbak. Nowadays, I usually don't wear one unless I'm riding 40+ miles on the road. The last thing I want to do is plan a road route around a filling station.

I guess I'd just rather ride without something on my back.