I've bought stuff from events like that, and it is usually crap. I dont' know that i would even buy tools there just to keep in a vehicle. Imagine you break an axle on a trail. And your bud has a spare. your are set, right? then you break that one wrench/socket you need to finish. now you are stuck w/ a diff w/o a cover, no good axle in, and gear oil all over the ground. Save your money for something a little better. Go to home depot, lowes, or even sears (if you have enough dough). leave the crap alone.
Just my .02