Maybe Camelot wants Nintendo to acknowledge him as a legitimate Nintendo character and until that day, he'll always be a side character
Someday we'll get Super Waluigi World.
If they do make it, I want an original villain. None of this "Luigi (or Mario) is the main villain" crap
If Luigi can have his own year, ANYTHING is possible. #yearofWah
Honestly, more people might like him (myself included) if he had his chance in the spotlight. Maybe a Wario & Waluigi RPG game?
Pull a "Wario Land: Super Mario Land 3", just call it "Waluigi Land: Wario Land 5"
OR Camelot: You don't get to use Waluigi in Smash unless you greenlight Golden Sun 4
It's actually the reverse, the creator of Waluigi hates the character and wants to put him in as few of Nintendo's games as possible