As like most people out there, I use my iPad for both Work and Entertainment, so obviously those will be the two main groups. Work however can be further broken down into my day job, where I work as a Systems Administrator (yeah those guys that usually complain about your email being over quota). And my night shift gig where I happily write for AppStorm and Mactuts+. - Pedro Lobo
Surprisingly similar situation to my own. And although Pedro's reasoning for which iPad he's going to buy is a solid one, his end conclusion does differ from mine.