Lessee here...
3DS: 9, including 2 digital ones - Bravely Default, Etrian Odyssey IV, James Noir's Hollywood Crimes, One Piece: Romance Dawn, Pokemon X (digital, sadly), SMT IV, SMT Devil Summoner: Soul Hackers, Super Mario 3D Land (digital) and Tales of the Abyss
PS Vita: 7 - Danganronpa, Danganronpa 2, Dragon's Crown, Hyperdimension Neptunia PP, Little Deviants, Persona 4 Golden and Sorcery Saga
Wii U: 6 - Disney Epic Mickey 2, Donkey Kong Country: Tropical Freeze, Hyrule Warriors, Nintendoland, Sniper Elite V2 and Zombie U
PS4: 14 - Alien: Isolation, Assassin's Creed IV LE, Destiny Ghost Ed., Diablo III, Dynasty Warriors 8, Final Fantasy XIV CE, Infamous: Second Son, Killzone: Shadow Fall, The Last of Us Remastered, MGSV: Ground Zeroes, Middle Earth: Shadow of Mordor, Natural Doctrine, Skylanders: Swap Force & Watchdogs LE
I love my PS4, I'd say I've already gotten my money's worth out of it. Heck, my wife made me buy her one too and she loves it as well.