The number of people, on this site, who believe that good games will come to the Wii via some magical "Wii development is cheap" reasoning is astounding. Free lunch much? Have your cake and eat it too? Come on you guys. Some common sense to read between the lines here.
This is a silly discussion, and a totally bogus one, from the spin Nintendo, and Nintendo fanboys like to put on it. Wii games ARE cheaper, on average, that's a fact. Wii games are rated MUCH lower by critics, on average, another fact.
When you take the tiny moment it takes to see through the PR smoke, the likely ~50% it takes to develop a serious effort on the Wii (not 1/4 -- what a joke. Look up "average" in the dictionary, and then count the number of shovelware titles available on the Wii), relative to a serious effort HD console, is outweighed by the fact that any serious marketing effort, and reduced revenue per unit, not to mention demographic scatter, etc. will balance the numbers in the end for the publishers.
It is very difficult for a publisher to target a large enough demographic on the Wii, unless they shoot at the "casual" genres. That's why they don't spend big bucks on other games, and that's why they like to blow Nintendo's horn, and pretend they are supporting the Wii fanbase, by touting the Wii's cheap average dev costs (in the past) as reasons to develop on it.
Ask yourself, if the Wii is so easy to develop for, so cheap, why don't we see more high-end games for the Wii, from 3rd parties? Surely the mere pennies they have to spend on the awesomeness of a Wii title will yield pure gold? Or has it? Is it, instead, likely that the reason Wii games rate so much lower, on average, is that, on average, less is spent on creating them -- I think so.
Publishers are struggling with Wii profits, because of the shovelware efforts on the Wii, plain
and simple. I think we can name about as much "w00t, we got lucky" titles on the Wii as we can on PSN and XBL. Publishers can't rely on lucky breaks to succeed in the long-term.
The "Wii development is cheap, on average" argument is moot. All shovelware is cheap, on average. This has nothing to do with the Wii itself. If publishers actually believed the drivel about dirt-cheap Wii development themselves, we'd see nothing but shovelware on the Wii, and if it was true, the publishers would be rich already, and Wii games would largely be lauded as being spectacular, not crap.
Is low-budget shovelware what you really want, as a Wii owner? End the ridiculous "develop on the Wii, because its cheap" reasoning now, if you don't. Go with "develop on the Wii, because the Wii is popular", because that's the reason the publishers should start spending some money on individual Wii titles.