@BladeOfGod
There really is no adequate metric for the quality of the product, and videogames are not the first medium where what the elitest experts hated the products that the general population loved. At the same time, there are countless examples of famous painters, movies, books, and muscians who were hated by the elitest experts in their time because they weren't producing the kinds of works that they were supposed to; and many of these works and the people that produced them are largely considered the best and most important works for their time, primarily because they weren't producing the same generic crap that the elitest experts wanted them to produce.
There is a segment of the population who wants videogames to be a more "Mature" medium and to approximate the "Artistic" mediums that they think are more important. In contrast, the largest bulk of the videogame consumer base sees videogames as a form of play that is acceptable for people of all ages to perform. While a game like Wii Sports and Carnival Games may not come close to the concept of videogames as art, they are excellent examples of videogames as play, and receiving negative criticism because of this may not be justified; it would be similar to saying that Brittany Spears newest album is poor because she didn't take the opportunity to make it into a gigantic political commentary.
Asking why games like Madworld performed poorly is a lot like asking why Reservoir Dogs did so poorly at the box office ...
