Surely there's other ways to prevent that? Like making the fee one time if you don't plan to publish to the app store. Ah well, I guess I'll have to fork over

Surely there's other ways to prevent that? Like making the fee one time if you don't plan to publish to the app store. Ah well, I guess I'll have to fork over that $99 when I want to install my own apps. Also, if I install an app with a developer account, but don't renew it the next year, will my app still be usable, and will I be able to update it?