Why are everybody trying to become the Netflix of gaming by the way? Netflix for the most part is full of shite with the odd gem here and there.
Because the more people that buy subscriptions, the fewer hard copy games there are in teh wild. This kills off the used game market. it might not kill it totally, but it will shrink it enough to make stores like CEX much less viable. They close, further forcing people to sign up to Gamepass.
Also, having access to a big slate of games day one makes a new console purchase much more attractive.
If a parent was 50/50 come Xmas 2020 about which console to get their kid and one came with over 200 games for £1 on Gamepass, including a slate of launch day exclusives like Halo 5, whatever else Ninja Theory are developing, something weird from Doublefine and a few 3rd party exclusives from Global Publishing, it'd help make their decision.
That;s why I think Sony are going to have to respond my seriously improving PS Now, which is a joke at present.