Against my advice, the household now has a Wii.
What we have already is:
Wii Sports
Wii Play
Wii Sports Resort
Wii Fit
My sister loves super mario, so the 'rents are also looking at Super Mario bros, Mario kart, Super Paper Mario, Mario Party 8 and Mario Galaxy (although not all at the same time, obviously!).
My question is thus - is there anything else actually worth owning? It has to be Wii exclusive - I already have a PS3 and there's no point duplicating.