People buy te Mario games the same reason people buy Taylor Swift and Kendrick Lamar: THEY DON'T CARE ABOUT ANYTHING NEW AND WILL ONLY BUY WHAT'S SPOON-FED TO THEM. Don't you notice that? There's nothing new at all. At least Sonic's screw-ups, the few they have, are based on bad ideas or glitches, NOT LACK OF ANY NEW IDEAS. Hotel Mario was allowed to be released as Nintendo LET Philips use Mario.