Have you played SWTOR?
No, but I hear that even with the Revan expansion there’s still little to noting to do in the end game so I don’t know if it’s worth it. Looks kind of fun for an MMO though.
Well SWTOR might be officially MMO but MMO related stuff is rather secondary to its storyline (single player) content. Basically I didn’t care about MMO stuff (PVP, end game PVE) or expansions and I kept my interaction with other players to an absolute minimum to maintain the immersion. I would also suggest avoiding any Revan related side story stuff.
If you ever decide to try you shouldn’t worry about having little to do. The original eight characters storyline content is huge. I would suggest trying Imperial Agent or Sith Warrior storylines. In particular, Agent got an universal praise among players.
I may get it if it’s less than 30 dollars.
I think they actually made it free to play at some point. Not entirely sure how it works but I am sure you have some limitations with free to play.
I suggest you check this introductory material (if you haven’t seen it):
Galactic History <- they hired Lance Henriksen to narrate these