As I said (Tl;Dr?) I'm pretty sure FTP is meant to get unjaded complete MMO n00bs (like I was before SWTOR) to try the game, upon which they get hooked on story and switch to subscription just so they could more freely (ironic, huh?) enjoy other aspects of the game as well. Also, the cartel market seems to be a cash sink for subscribers who don't wanna wait for CCs to accumulate before they can get cool shit. Or an alternative to spending buttloads of in-game currency, by letting you unlock so much legacy shit with just a few buck here and there.