I don't play MMORPGs
The way I see it the money and time investments for MMORPGs is so all consuming (with my budget and time constraints) I have to choose between playing one MMORPG per year and expansions, and playing SCORES of new, different and interesting games.
It's easily £120 per year for subscription and the obligatory annual expansion, with steam Sales I can get about 10 games per year with that. TEN games! Different games! No MMORPG can match the unique variety and enjoyment of the top-10 PC games of the past year. Not without a lot of repetition and pedantic variance, not REAL variety!
And all the mods you have for the PC games you have bought, adds a further layer of variety to everything.
And fundamentally, the mechanics of MMORPG that trade your time rather than your skill, grinding. I can't abide by that and SWTOR seems to be doing the same thing.