Nintendo has always been the king of platforming.
- The 12 best selling platformers of all time are made by Nintendo. This list will just continue to grow (most likely 13 at least by SMG2)
- Over 33% of Nintendo's software sales come from platformers
- Nintendo accounts for somewhere around 2/3rds of all the platformer sales through history (73% by VGChartz data, but there's a fair bit of lacking data). They'll just increase here too.
- Mario Platformers from this generation alone is likely to sell more than any other franchise has through history, save around 5. (It's at 55 million now. 75 million seems quite likely. For a comparison, Zelda is likely to be at ~ 67 m after the Wii ends. Final Fantasy will be at 90 million ish)
Pretty much nobody sells platformers nowadays other than Nintendo, and they do it in huge, huge amounts.