That Grand Prairie store is ok. Found some semi-rare NES games there a few years back. The area is very sketchy but if you go early on the weekend its pretty dead around there. Gamechop has some very questionable prices on some of their games. 9.99 for NES commons, etc. Occasionally a good find will slip through. I've even seen some imports there as well.

Trader's Village is hit or miss. I've found some great deals there for some rare games. But then for each great deal there's about 5 sellers trying to overcharge for common items. $10-15 for sun faded SNES games, Busted ass NES's for $75. Their reasoning? "They're collector's items' Well obviously if you're going to charge collector prices then at least make sure the item is in quality condition. Also saw a few vendors assembling pirated GBA games. I found it very hard to find any real deals the past time I was out there. Still it's worth a trip every once in awhile, and there is a regular vendor who has been there for 10+ years that has a ton of games at some pretty decent prices.

Also, if anyone in the area hasn't been yet, a new Play N Trade opened up on MacArthur Rd in Irving a few months back.