I'm considering buying the $50 point bundle, but I don't like the idea of my credit card being permanently tied to something as relatively insecure as a game. Paypal is a good option, but I don't want to verify (make it a direct line to my bank account) for the same reason -- paypal may be a bit more secure and is a single point of failure for the credit card, but the bank account info is a whole other level.
So, any other way I can participate in the $50 deal?
Or, is there any easy way to remove my payment information / not save it after the transaction is complete?