As someone who's always been disappointed by Playstations I would rather Sony leave if I had to choose. Has Sony ever brought anything innovative to the industry? No. All they've done is just imitated everything that Nintendo and Microsoft have done (even now with the wand and trophies) also as it's been stated Microsoft are making the profits and Sony are making the losses and if they don't learn from their mistakes next time then I'm not sure many of their shareholders would want them to continue in this business.
Whether you like Microsoft or not they've brought a lot to the gaming industry and for me personally the Xbox 360 has been the first console I've actually used more than it's Nintendo counterpart ever so I don't see any reason why they would pull out right now but if I had my way I would like Sony to withdraw if any, just my opinion.
