I've got two questions about paypal's shopping cart (buy now button): 1- If buyers don't have a paypal account, and they want to pay via cc, are they required to CREATE A NEW paypal account first? Or can they just pay via cc without the need to create a new paypal account? Basically, does using the paypal buy now button and shopping cart, cover majority of payment options available to even non-paypal members? 2- Is there a way to make the price/amount automatically change after a certain number of purchases? Maybe a third party tool to automatically alter that based on how many purchases occur?