To clarify, Paypal is fine for hobby projects, where you don't mind sacrificing a bit of professionalism for a cheap and easy payment solution. And where it's

To clarify, Paypal is fine for hobby projects, where you don't mind sacrificing a bit of professionalism for a cheap and easy payment solution. And where it's not the end of the world if they freeze your account. You can survive in that mode while your hobby transitions into something that brings in a few hundred dollars a month and pays for your beer. But once you graduate to a real business, you need to get a real payment processor. It's not a step you can skip, and it will cost you $100/month.