Is the Mongoose Rockadile AL Mountain Bike at a href="http://www.nashbar.com/bikes" rel="nofollow"http://www.nashbar.com/bikes/a worth it?

Your not going to be able to do anything extreme. Seems to me it's a casual ride. If you take it out on advanced trails it might last only a couple of trips. It's a bike mainly used for straight rugged terrain with not allot of bumps and hard curves and big jumps. So, I would not ride this bike at all. Plus its a throw away bike. If something happen to the bike and you needed to fix it your going to have a hard time finding parts for it. I would go to an actual mtb dealership, see what brands they have and buy the cheapest bike on shelf, since your being a tight wad. Or u can see if the brand the shop is carrying is cheaper online.