Let's just say that compared to 0$ for a bank transfer (at least where i'm from) it seems like a bad deal.
Those are all payment methods we plan to support in the future. Bank Transfer and Check don't have the same kind of processing costs, so that will allow us to do the payments for something more like 1% instead of 3.9%. We also hope to make the process of setting up and verifying those accounts less of a pain.