Instead of trading it in, I would recommend adding on the Kinect. All women love dance central.
So, I've had my 360 for probably 5 years and I'm thinking about trading it in for a Wii. I think the Wii will be more fun for my wife and I to play.
I enjoy the sports games the most - are they about the same on the wii as they are on the xbox?
haha - this is true. she likes mario and zelda though...