Third party sales on the Wii start to fizzle out after about 2009, people got tired with the shovelware, but shovelware type games are the types of experiences the controller was good for, so it set up a conundrum.
Red Steel 2 was a (far) better game than Red Steel 1, yet it sold less for example.
There were definite tell tale signs by about 2009/2010 that there were cracks forming in the Wii craze.
There were third party hits for the Wii after 2009 but it's not the type of things Nintendo fans like to play up, it was stuff like Zumba Fitness, Just Dance, uDraw, etc. were all decent sized hits. That's what the Wii did well with.
It never really did well with the hardcore type traditional game experiences though, why would someone purchase a Wii for that experience when the Playstation 3 or XBox 360 were 100% tailored to that experience and had far better graphics? There's no incentive to get a Wii for that type of game.
Waggle wasn't some big selling point for hardcore games, even with things like Move ... "yeah I'm totally buying the new Killzone game because it has Move support!" ... said no core gamer ... ever.
