It will be interesting to see how this sells. The game has the quality and substance, at least from that trailer, to warrant the price tag. But let's not forget that the mobile market is a crap circus and has a price ceiling for most games and genres somewhere close to the devil's subbasement. So this game will be bucking trends. I think it can work, primarily because it has a strong brand behind it while most mobile games are either intentionally generic to a frankly painful degree or rip off other brands, giving off a very cheap feeling.

Isn't it free at the start? Then $10 for more worlds or something.

It's basically a Demo.  Free version is the first level or two I think and then 10 gets you everything else.

This is clearly gonna be a hit. A pitty that is not on Android though.

Is this a joke? 

I don't know how many levels this game will have, but we know it has 6 worlds and the last level is 6-4.
Personally, i expected more worlds (possible more levels) but if Nintendo keeps adding worlds from time to time, it's fine.

Square Enix charges twice that much for Chaos Rings.  MHFU costs $15.  Ghost Trick costs $10.  If the quality holds up to classic Miyamoto standards I think $10 is just about right to generate a substantial profit without diluting Mario's dignified brand — I probably wouldn't pay that much, but I doubt I'm the target market. Good thing that Nintendo is launching it on iOS, whose users spend 4 times as much money on apps as Android users, and they got excellent word-of-mouth by being the very first app to receive availability signup from Apple.

Should be free to play, $10 for that? lol

Kingdom Builder looks absolutely pointless and extremley limited from what's shown there.

This looks better than most (if not all) the autorunners I have seen, nobody was expecting more than this from a Mario Run so don't act like you were.

Should be free... And how the hell do they win money? Mictrotransactions to jump higher or what?