Keep looking -
I found 2 nice GF4 PNY brand video cards a while back for $20 each (must of had 4 different red mark down stickers on each!! ). I posted in another thread, nobody else found them... (they did find GF2's for the same price ;( )
Definately YMMV, but keep trying!!!
(BTW, they are buried in the electronics dept., actually near the CD-R's & Inkjet paper...)