Gar! I waited too long to get an AT&T compatible Straight Talk sim. Is shelling out $50 on Ebay my only option?

Anyone got one they aren't using?

T-Mobile only has 2g coverage in my area.

EDIT: I just bought two Net10 AT&T sims just in case they stop selling them also. It looks like it's a wash going with Net10 anyway since they have a family plan that makes the price the same as what it would be with $5 savings with Straight Talk