Originally Posted by
cyccommute
I agree that one size doesn't fit all but I disagree on the mountain bike. Not only do I use one for 10+ mile (one way) commutes, I do them with knobbies on the bike. Nothing freshens up a commute like a little variety and I use the mountain bike to off-road to and from work. Yes, it is slightly slower but that's not the point. Doing something different and maybe having some fun is the point.
I know what you mean, some people say the same thing about roadsters when in reality they can perform just as well or better than other types of bikes depending on circumstances. They're confusing personal preferences for specific attributes with actual capability in a broader spectrum.