Sony's purchases were generally smaller individual studios that didn't have big libraries of existing established IPs?
There doesn't seem to be many examples of them buying studios to take existing cross platform megahits exclusive.
Edit: They apparently bought Bungie recently? Wikipedia kinda doesn't include it in their list of PlayStation studios in a normal fashion so I missed it. I suppose that is buying a big IP in Destiny (in reaction to the MS-AB takeover?), although that's basically a 1 game studio (next to no-one is really going to care about Myth or Marathon), so it's still a fair bit smaller than the sort of stuff proposed with MS and A-B.
There doesn't seem to be many examples of them buying studios to take existing cross platform megahits exclusive.
Edit: They apparently bought Bungie recently? Wikipedia kinda doesn't include it in their list of PlayStation studios in a normal fashion so I missed it. I suppose that is buying a big IP in Destiny (in reaction to the MS-AB takeover?), although that's basically a 1 game studio (next to no-one is really going to care about Myth or Marathon), so it's still a fair bit smaller than the sort of stuff proposed with MS and A-B.