Honestly, exclusives do sell consoles and is probably the reason why the Wii U managed to outsell the Dreamcast and Saturn and pushed 14 million units despite being the worst console hardware to hit the market possibly ever from a major console developer. If it wasn't for games like Mario Kart 8, Smash 4, Splatoon, Mario Maker the Wii U probably would have sold half of what it did. The Wii U was a complete disaster in terms of hardware and I would say was an even bigger hardware failure than the Saturn. Honestly, if Sony, Microsoft or even Sega released hardware that was as bad as the Wii U they probably would have killed it after a year because nothing could be done to resurrect such a disaster. Nintendo EAD had so much talent that they were not only able to keep a pulse in this dead console despite zero third party support they actually created some of the best games of the generation. If you look at the major sales spikes from the Wii U during its life, it always followed one of the amazingly successful first party releases.