I find the 'My Wii (or other system) is gathering dust' stories kind of funny because how different the individual's life must be from mine ...
I (generally) have a lot of time to search the web because (at work) I have a lot of down time from database imports/exports, code compiling, or waiting for processes to run to verify that they're working. In my personal life I really don't have much free time to play games when you factor in working out, dating, cooking, cleaning, and (pretty much) everything else related to being an adult who lives by themself. I constantly see great games released for all consoles that I simply don't have the time or energy to release so I never (really) feel like there are too few games available for me to play.
I'm certain people can list dozens of enjoyable Wii games that have been released this year, if you have tried them all and still find that the Wii is not being used enough I think you're getting good use out of it, and if you haven't tried many of them you may need to consider opening your mind to different ideas.
