I think that ALL THE WORLDS A STOOGE lobby card is a fake. It keeps popping up on Ebay a couple times a year. I've seen it before a bunch of times.
The thing with the cards is that there's one guy (jas34) who bids on every stooge lobby card that comes on ebay. And he's willing to pay enormous amounts. So, if anyone REALLY wants a specific card from Ebay, they've got to pony up rediculous amounts of dough to just get past (jas34)
On a regular day, I'd value that card at about $900-$1200 tops.