If MS bought valve they could just change the branding and they have a pre-baked system ready to go.
I would love them to buy EA and close them down, they damaged the industry and need to go.
Then where does all the IP go? I get it, EA is a cancer on the world, but I wouldn't want to see all those games just disappear into an endless limbo where MS own the IP but doesn't do anything with it ever again.