I remember why I thought it was cool, besides the fact that it was a freakin blast to ride an oversized BMX bike with gears on a single track trail- it was a rebel sport back then. Our gang didn't normally wear "cycle clothes" like lycra and such (one did and heard about it!), and it was all about going out in the woods, smoking grass and flying down the hill fast! Watching the passerby road cyclist with all that flash and shaved legs made us feel like we were doing something cooler- (I am much more evenly balanced now, especially since learning eventually that they were smoking too!) Yes, back then MTB was cool- you can't deny it. I agree with one of the posts here who stated that after the mid 90's and cheap mass-produced bikes were everywhere, it wasn't the rebels and fanatics anymore..it was everybody! That's the way it happened with every innovative "cool" sport I imagine. It was cool to custom out your ride too back then, it seems that all of my extra money went to it.
COOL.