Nintendo didn't do anything wrong with the SNES, that system sold less than NES due to real competiton from Sega. The N64 had to face the PS1 which stole the Japanese market from Nintendo due to the lack of JRPGs on the N64 ( went from 17m to 5m in Japan). The GameCube was plagued by many questionable decisions and the same can be said for the WiiU. If NIntendo makes a console that isn't plagued by questionable design choices and that gets at least the support of Japanese 3rd party publishers then I can see it outsell both the WiiU and GC. Heck, even N64 numbers aren't out of the question because such console would perform better in Europe and Japan than the N64, which would make up for the lower numbers in America ( I don't see the NX sell 20m in NA).
---Member of the official Squeezol Fanclub---
