[BoorishBears]

The problem is the margins are so high these digital storefront cuts almost become arbitrary. So to try and come up with a somewhat objective measure... 30% is too much based on their own historical pricing.

Steam was taking 30% when they did heavy curation and hand picked every game. At that point being on Steam was probably as valuable as a traditional publisher distribution wise because just being on Steam assured some level of quality.

Greenlight was the start of the decline in that value, and then with Steam Direct its just officially insane that they're still pricing their cut at the same rates they did at launch.

The value adds you listed also got much easier to build over time and got commoditized. EGS offers most of that for free for example, sans gambling enabling marketplaces.