Microsofts Games with Gold-program innebär att du som betalar för Xbox Live Gold-medlemskap belönas med två kostnadsfria spel varje månad, men tjänsten begränsas av faktumet att spelaren får behålla sina spel för resten av livet, menar Phil Spencer.
"One of our issues with Games with Gold - not 'issues,' but differences between the other system we get compared to, is the fact that with Games with Gold, you get to keep that game, regardless of whether you continue to subscribe", berättar Spencer under en presentation där Polygon fanns på plats.
"And the business around Games with Gold, for us, is just fundamentally different from some of the other programs that are out there, which does put a different financial picture on a - you're gonna go buy a game that's brand new, the cost of putting that in, just to be kind of blunt about it."
Med andra ord skulle Microsoft behöva spendera mycket mer pengar på att ge bort sprillans nya titlar snarare än att "hyra ut dem", som i exempelvis Sonys motsvarande tjänst.
Spencer lovar dock att ägna mer tid åt att personligen vara delaktig i att välja ut så bra titlar som möjligt inom de ramar man har att hålla sig inom.
"I have been sitting down, monthly now, with that team - some of the earlier months were already programmed - and playing a more active role in picking franchises that show up in Games with Gold, and I think you'll see at least something that feels, at least, more true to what I think Games with Gold should look like with the constraints that are there."