Dunno.
Lack of effort in 06-08/09 meant that Wii owners honed in on Nintendo games and the occasional 3rd party game
Last year and this, 3rd parties have really tried, especially exclusivity (MHTri, Red Steel 2, Epic Mickey, Xenoblade, Little King's Story, Conduit, Goldeneye etc.), and this year looks good as well! (TLS, Conduit 2, de Blob 2, The Grinder, Pandora's tower, UDraw etc.)
So it isn't a lack of effort now, just a select few companies (EA!!!) don't put in the effort, and you don't get something for nothing...so what do they do? Make better games? No. They release poor mulitplat games (NFS, heck, FIFA doesn't even have Manager mode in!), make a good game in a poor genre (Dead Space Extraction), so instead of putting in the effort, they continue to put out poor games and blame the audience.
The Wii audience isn't stupid. They've learnt now. Only good games sell, and good games, well-advertised, do sell...
