I'd imagine this question could be answered if I kept digging in this forum and other areas, but after some research I'm still not confident. I want to buy my first console and decided on a Wii because of the interactiveness. I've tentatively decided on a Wii with the sports package (I mainly want to play tennis, but like other sports as well). My questions are should I spend the extra to get a new system or save money buying used or refurbished? What's the difference between a controller and nunchuk? I've read I should get an extra controller (or nunchuk?) so my partner and I can play together. Thanks!