Some of the records on my wishlist are there simply because I need to have them to complete my collection of a particular label, not because I have any particular desire to use the record.
As such, I would probably pay about $2 per record, with perhaps as much as $5 for an out-of-print record that I really want. Yes, shipping cost would also be added on top of that. But, once again, I'd prefer to trade for records on my excess records list.
I trade on a one-to-one basis and there is no money changing hands.