Personal rating: 10/10
Budget: Worth it, unless you dislike Star Wars severely.
Lenght: A few days to a week.
KOTOR is one of the best roleplaying games I've ever played. Apart from the infuriatingly ugly jedi robes in this game, this might be one of the best titles ever.
Another thing that I should point out as a serious mistake from the developers side, is that you can only have 3 active party members at a time. Instead of such a set up, I'd have preferred if encounters were just that much harder, and you'd need all 9 or however many party members it is you have.
Many party members end up just being "extras" in the story, only taken out for air when you realize it's been a while, and you need to level them up, and possibly unlock some dialogue with them.
Many other games pull the same stunt, such as Dragon Age or Mass Effect, and it's equally silly. If you have the man-power, use it!.
Apart from that, this game, being a Star Wars game, dives head first into the lore and setting for Star Wars and introduces villains and heroes that can compete with the heroes from the original trilogy. The plot of the story is, I'd say, even better than that of the original movies, and much more immersive.
Gameplay wise, the game is very similar to dragon age origins.
Any Star Wars fan should play this game. Any RPG fan should play this game and become a star wars fan.