You don't need to buy a whole company for one IP. You can just make a deal to own the IP. Nintendo co-owns Fatal Frame from 4 on. Crash was a Sony IP at some point or at least Naughty Dog. Spyro was once Insomniacs, right? Or even Sony does not have to buy the IP but just ask Kojima to make a successor series. Something new. MGS is kinda done anyway. Not sure how much more milk could be drawn from that IP..aside from MGR2 (PLEASE)