Originally Posted by Adoby
Sorry, not using PayPal means just that. I strongly suspect that PayPal take a small percentage of any payment you have them handle, even if you don't have a PayPal account.
Well of course they do! They are operating a payment gateway.
All payment gateways charge by transaction. The vendor is charged a small fee, usually a percentage, for each sale. It's a business cost that the vendor chooses to pay in order to use the facilities of the gateway.
And as Kovid noted, when you want to use a single payment gateway that can operate globally your choices are limited to those big companies that can handle transactions in every territory.