not only that, but the mario fanchise is so all emcompassing, besides just super mario brothers and mario 64 and all those other mario platform games, u have mario kart, mario party, mario tennis, dr. mario, mario basketball (whatever it was called), mario golf, and all the luigi, wario, and yoshi spin-off games...
as long as each game was at least somwhat successful, the sheer amount of games in this series makes it...well, alot of money