Epiphany, the point to modding a game is to correct some flaw or enhance the game somehow. From reading the forum posts, most of the complaints about this game has been the storyline after the second visit to Dantooine (i.e. once the gameplay becomes linear). By modding the game, you can change dialog, scripts, et cetera so you could make the storyline better if you want to. For example, in the first KOTOR game, someone made the Padawan mod where you start off as a jedi. Someone else made a whole extra planet. So, in my opinion anyway, the ability to mod games make them better than the way the developer shipped them.
By the way, if you want to read a Star Wars story that is written extremely poorly (as in the writing style sucks), read anything by Alan Dean Foster. Yes, he's also the guy who ghost authored the novelization for A New Hope. A couple years ago, I went back to read it again and had to put it down after about 30 pages.
Doctor Kiara, thank you, and I'm a he. If you know how to build a computer from parts (as opposed to buying from Dell, Gatewat, etc.), you could build a good one that'll play KOTOR for roughly around $1000, depending on how good you want it to be. Oh, and I hope your flight was safe and you got your luggage. :D