Personally I don't mod my wii and I do not support hose who mod their machine. In the end it is the people who buy the real ones support the software industry while other just take advantage of them.
But I also think the real game for wii is way too expensive compared with the quality. XBox 360 and the PS3 games the graphics are so much better and they are selling roughly at the same price of wii games.
I think below 30 US$ is the fair price.