What site is irrelevant, I saw this post in their trading section and had a good laugh......

THESE ARE VERY RARE GU's :

JOSH HOWARD UD OVATION GU(#26 of 50)
CHRIS BOSH DRIVE N THRIVE TOPPS GU
KG HOT NUMBERS FINALS FLAIR EDITION(#85 of 250)
CHAUNCEY BILLUPS UD GAME JERSEY
JAMAL MASHBURN AND KIRK HASTON HONOR ROLL DUAL JERSEY(#129 of 1000)

They are all low numbered also which make them even more valuable:

SOLD FOR $250 , HAVE SOME ROOM SO MAKE ME AN OFFER