Get life, you keep your current characters and kotor isn't the only x-box game you play. It's only like 60 $ for 12 months and a headset, you can use it for the rest of your x-box games and your upcoming x-box games.
I will buy kotor 2 on my x-box, I only use my pc for work and I only game at night, since that my x-box and tv are in my room, it's natural I choose for the x-box version.