As an aside, we also get a load of client requests for PayPal as an alternative simply because many people don't have a US-based credit card. If you're making the moves to support global markets, it's tough to side step them.
I really wish PayPal brought back their digital credit card which you could preload with cash and use online like a real credit/debit card. It would solve all of our problems with users who don't have a CC!