OK, maybe not rich, but very, very comfortable. "How did you accomplish this, Rowan?" you say. Through space missions!
I can hear the weeping, wailing, and gnashing of teeth now. NOT THOSE CRAPPY SPACE MISSIONS!!! I dunno I think they're pretty easy and relaxing (Casual Gamer) And I feel like I make a decent amount of credits for the time I put into them. (The XP doesn't hurt either, not that I need it.) In an effort to earn some cash for his level 25 speeder, River was told to take up slicing, which is apparently very lucrative at certain levels. I had plenty of money for my level 25 speeder, and by the time I was 27, a day or two later, I had fully recouped the cost and given a few thousand credits to my alt and Sctrz for their speeder training.
Just another suggestion for making a little extra cash in SWTOR.
EDIT: I failed to mention that I totally want the Social 3 Imperial Pilot outfit for Tollkisrche, my badass Flyboy Assassin. Need to run some Flashpoints.