The amount of fun my friends, wife, and I have had with Wii Sports make it worth $50 easily.
I don't buy this logic at all, and never have, honestly. See, there's got to be a point where your personal enjoyment must be set aside an the game must be looked at as a consumer product, where the content is evaluated clinically. I mean, for the first six months I had the 360, I played the living s*** out of Geometry Wars, but does that mean I'd pay $50--or even half that--for the game? Should Virtual Console games cost more than most of the $50 new Wii games?
Wii Sports in a DVD case, as is, is basically a $20 game. Maybe $25 (5 games at $5 each, I suppose).