Yeah, this just sickens me, not only because we as consumers are being denied things to buy there, which is key to the success of their supposed charity, but those who donate surely didn't do so thinking they would be "helping out" the greedy employees of GoodWill.
I was at a Salvation Army one day when I spotted an old Casio sampling keyboard behind the register and asked if it was for sale. The cashier called out to the security guard at the door and asked him if he still had it on hold and he said "No!" in a very denying way, as if he thought I might there to bust him or somesuch. Someone should do a hidden camera investigation on those lowlife parasites.