Well the backward compatibility is nice since it lets you sell your Wii to recoup some of the cost of the Wii U. If you don't care about losing the GameCube BC, anyway.You should do a price chart just for fun.
All that research and development for backwards compatibility, small form factor and a low res tablet with single touch resistive screen and specs that barely keep up with consoles released 7-8 years ago. Only for a low price of $300