On the cost issue, if you average seeing one movie per month (as I do) then the 11 bucks a month you pay for the movies can just as easily go to a game you will play for more than 1 hr, 45 min a month.
However I would not buy SWG unless you LOVE to craft. I say this having played it for 6 months, from beta to half a year into release. I helped found Guns, Money, Women (GMW) on Bloodfin, which remains a strong and influential guild, with several Jedi and (last time I talked to them, a month ago or so) the second highest-trained Dark Jedi in the game. So I have a little experience with these things.
The game is pretty fun to play, but it becomes very repetitive and demanding in that to produce very nice equipment -- and player-produced stuff is the ONLY kind of stuff in the game, there are no NPC vendors for weapons / armor etc. -- as your factories, mines, etc. operate and require maintenance even when you are not logged in.
If you're someone like myself who usually plays a stand-up knock-down fighter or a healer, you'll find yourself finished with your profession depressingly quickly =/ I mastered combat medic, medic and pistoleer so quickly it wasn't even funny. 3 or 4 of the guys in my guild had to master EVERY profession to unlock their Jedi powers.
I won't even dive into the Jedi issue. If you like crafting and SW then it's probably the game for you, if not, there are many others.
Alex