How much is minecraft for the ds?

As of now there is no version of minecraft for Wii.*

* If it becomes available in the future, it would most likely be the same, or close to the same, price as it is on the other consoles. Recently, Mojang's exclusive partnership with Xbox, for Minecraft on their platform, ended.

While a version for the Wii has not been announced, there is still a chance it will happen.