I too forget sometimes that Wii U existed.

Wow. I really did forget it existed. I was still thinking of the Wii.

I forgot that my Wii U existed until I remembered, hooked it up, and the NAND had gone bad.

So I replaced the NAND by soldering in an SD card, got it working again, and put it back in its box until I decide I need to play Wind Waker again.