F-Zero for a number of reasons of various types:
genre diversity: They have a kart racer, F-Zero is a different sub-genre.
demonstration: F-Zero is a futuristic racer with more potential to be a head-turner visually to the general public. It would make an excellent show piece at E3 and other conferences.
appeal diversity: F-Zero is a hardcore game if ever there was one and it looks the part.
marketability: F-Zero looks awesome. You could easily produce any number of commercials that would make people want to check it out. Seriously, if the marketing team can't make F-Zero look badass, they need to find a different job.
Personal: Mario Kart's great, but I love F-Zero. It's a classic; it deserves another shot (with some actual marketing please)







