At this point, they're giving it away.
Nintendo has announced a Yo-Kai Watch bundle just prior to the game's launch.
Starting on November 6, a bundle of a Nintendo 2DS and a preinstalled copy of the Level-5 developed RPG will launch for US$99.99, the current MSRP of the system.
Be sure to check out Josh Max's hands-on preview of the game from New York Comic-Con as well.