They'll definitely be on clearance universally, just possibly not the exact same price. The hardest part is finding a Wal-mart that still has them. If you can find one, it should be $50 or less by now, regardless of the location.
FYI: "besides eBay" is a suckballs choice of a thread title, more befitting of a song title...try putting the actual subject in the title for better/more help/responses next time (ie: cheapest GBA Micro, besides eBay)