Going back to the idea of Nintendo buying Sega, I'd argue it makes no sense. As crazy as it would have seemed 20 years ago, Nintendo and Sega are pretty much the best of friends. I don't think there's another third party publisher that Nintendo's closer with. Sega's already giving a lot of support to Nintendo, and with stuff like Mario & Sonic at the Olympics they've shown their willing to share IPs. Your dream Nintendo/Sega crossover, a Monolith-developed Skies of Arcadia or Shenmue 3 on Wii U or whatever, would still be perfectly possible without Nintendo spending a ton of money to buy them. The funny thing is Atlus exclusivity would probably the biggest benefit to doing it.