This thread makes me laugh. I don't get why there is so much arguing about this. I mainly just bmx with some mountain biking and the very rare instances where I do road. And all I have to say is road/mountain bike = better in the long run. Bmx is only good for going to the corner store and doing tricks. Maybe these people are talking about going places that don't require uphill rides, but I don't think that exists. I wonder if any of those people have ridden anything besides a bmx. When you go from one to another you realize why you were exhausting/torturing yourself more than you needed too.