Why not???? I guess if you do different riding styles you have a tool for each. I use to mountain bike too when I lived in the NC mountains because there were so many areas to go and do that style of riding. However, I found I did not really care for that type of riding. I like the paved road and a nice road bike as my style of riding. Its about choices in this sport and the availability to do what you like. The only thing I do try to steer folks from are cheap dime store "bike-like" bikes. If you don't have the money to buy new quality then buy a nice used bike of quality.