Downgrade PSP - What You Should No Before Downgrading Your PSP

Why do people want to downgrade there PSP? Its simple really, if you want to be able to play downloaded games on your PSP you must downgrade the firmware version to allow you to play the games. Ok that may seem at bit backward, normally you would want to upgrade your stuff to the latest version. The problem with upgrading a Sony PSP is that with these updates (upgrades) comes extra security from Sony. Basically Sony trying to save there ass and make everybody buy full price games, or may be thats just me being cynical.