You’re clearly not factoring Microsoft growing list of 1st party studios into the equation here.
There is nothing at this point that says that a MS studio won’t make the best game ever, and since all MS games are on Gamepass the best game ever will in that case be on Gamepass.
Really, it’s great now and it’ll just get better going forward when all studios start opening the floodgates.
And it’s also fun just trying out different game types you would never try if you had to buy them. Like sports games for me, I would never waste money just to see if I like a sports game since I have zero interest in sports.
But if it’s free? Sure why not.
And you don’t have to play a game for 30-40+ hours unless you end up loving them and want to finish them. You never feel like you wasted your money if you uninstall a game after 5 hours so you never have to waste your time on a game you don’t really like, you never payed for it anyway so you can just go -uninstall- without feeling bad about it. It’s great!