Authorize has an option for recurring billing which holds the users' info and so on and it's $10/mo extra. Do I need to get this option with my Authorize.net account setup, or can aMember handle all of that?
I believe it depends on your form of integration with authorize.net AIM integration should allow you to do that, but I believe the CIM intergration to be much more secure and worth the $10 per month.