I agree with Hades_One in that I believe there is PLENTY of room for a non-Jedi focused SW RPG. I do not, however, believe that the KoTOR series would be a good place for that RPG.
There is a mystique about the Jedi, our mundane problems are insignificant and fade away when you can immerse yourself in their world as one of them, using extraordinary powers, combatting heinous (and equally powerful) evil. IMHO, people want to play Jedi for the same reason they name themselves after characters of LoTR, or any other piece with remarkable, powerful characters. It's a form of escapism, and a lot of people don't want to escape from one mundane existence to another. Why play a sparrow when you can play an eagle?
Anyway, the above are just my thoughts on the matter. I'd play a bounty hunter. *grin*