I really, and I mean REALLY, want Star Wars: The Old Republic to succeed. I want it to be everything Star Wars Galaxies failed miserably to be, and more. However, unfortunately there has been a complete lack of information pertaining to "end-game". No one really has any idea what kind of game SWTOR will ultimately be and that has made it hard for me to get overly excited and caught up in the marketing hype. All we do know is SWTOR will feature strong storyline elements (questing) that are unique to each class.
Anyway, watch the trailer, it's VERY nice. The cinematic trailer begins at around the 4:30 mark.