I notice that when you buy a product from ClickBank, it gives you the option to purchase through credit card or paypal. I always felt customers would be willing to do business if they didn't have to shell out their cc details. Are conversions higher when customers are given more payment options?
Yes definitely. Some folks do not have paypal a/c because of their country of origin, so cc works better for them.
Just check your stats, you can see what kind of payemnt methods used the customer, you have the payment methods for all customers listed there.