Impact on sales of using external site for payment processing?
JeffL: I offer both options for setting up monthly subscriptions and people go almost exactly 50/50 between the two.  Some people prefer Pay Pal because they feel more secure while others refuse to use Pay Pal for whatever reasons.Setting up a payment system isn't really that difficult.  It seems like if you get even 1% more sign ups because you offer both choices, you should hopefully make out on the extra implementation cost.