Oh man. D8; That's awful! If you paid for the Nintendo Wii with your own money, then you have every right to object to your sister taking it with her to college. You'll just have to put your foot down, they can't just take stuff you bought for yourself, especially something quite pricey like the Wii. It's not selfish if it's rightfully yours, after all. I wish you luck, man, I know I'd be as furious as you are if someone tried to take my Wii away. D8;