Most users won't know or care to sideload apps, so BlackBerry has to work hard to make sure those users don't have to in order to get the best possible experience.
The man paid in cold hard cash, and after a tedious 40 minute purchase process that involved a bit of activation, some nice tutorials, a quick address book sideload from his old Touch Diamond and whole lot of peripheral upsell, Alfredo was one of the world's first satisfied Pre customers.