i have one of these cards, and this guy on ebay wants $100 for it. is he joking? the condition looks similar to mine.
http://www.ebay.com.au/itm/1985-Garbage-Gang-Series-1-Garbage-Pail-Kids-ADAM-Bomb-8a-Rare-/140739911046?pt=LH_DefaultDomain_0&hash=item20c4c09d86
They are in good condition. No bends, folds or rips. Only some slight browning of the white border. they have been kept it a folder.
I have been selling single cards on ebay. They have been going roughly for $5-9 a card. Some are rarer than others obviously.