My Wii has like 3 years now. It has a lot of flaws, like the sensor bar that was bittten by my cat. I want to sell it and then buy a new Wii (black model). If I sell my old Wii, I can ask my parents to buy me an external disk drive to play backups via USB. Should I sell my old Wii and lose DVD disc reading to get a new Wii and move onto USB ISO reading?