Our Wii still gets used in our house, pretty much only for Wii Golf.
As far as I've heard there's no new Sports games available for launch. No Mario Kart either.
Group gaming is what a lot of people want these things for. The kids can do their personal gaming on their iPads.
Sadly, that means no sale for us in the first few months. If a new Golf and MK come by Christmas, we may upgrade then.