I didn't like Waluigi at first, namely because he came out of the N64 era when I (and I'm sure many other people) first started to become jaded with Nintendo... just thought he was really cynical even if by that time I understood where the name came from (Wario at least makes perfect sense in both Japanese and English, Waluigi becomes much more awkward in English). Though I don't mind the character that much anymore, I see him as more of a Dick Dastardly-esque reference if anything, and wouldn't mind seeing him outside the sports games.