Originally Posted by harvey

Magic Members is MUCH MORE than that It gives you the option to drip content, sell per scene, offer almost any kind of access you could think of (and adding more soon! ). But the thing is all WP membership plugins needs to write the members info from the CC processor into WP users database, so the entire process depends on what CCBill/Zombaio/whatever API's sends back as signup information

This being said, there are different approaches: you could just leave WP open (this is, without members info) behind a protected folder and have another install in your root that grabs teh content from members area, but this approach is old and annoying. Good WP memberships give you the option to extend WP even further