The ones around here vary GREATLY on games, if you can FIND games at them, which you never can. The one thing you can be assured of though is to find lots of washed out, overpriced clothing at all of them around here. Honestly they seem to think used clothing and quilts are gold. Some of the prices are more than what walmart charges for brand new clothing, if you can stand to shop there. When I have found games they were priced pretty reasonably, however its usually only a single NES game buried with the cassettes or something. Books are universally priced at 1$ for a hardcover or 50 cents for softcover so you can make out there, the ones around here don't have the 90% off retail thing although I've seen it at some out of the way stores. CD's are 2.99 at our SA.
I did find a good Tshirt at one SA over the weekend, it was a GBA classics Ice Climbers shirt, and the right size too, it had 4.99 on the tag with 50% off for family clothes day, well when I got to the register they only charged me 2.99 + 50% off so I got it for like 1.50. I look a bit younger than I am and I guess I give off the poor college student vibe, so I am not sure if they profile their customers when buying clothing and give discounts as they see fit or what. I have been behind well dressed old ladies who they charged the full price for for all the clothing they bought..