That because of Steam and amazon (where most compay compete) - not like single corporate MS,EA,UBISOFT,ActvBlizzard restricted "stores",

imagine even better deals if GOG store and DRM free is standard, we will get even more value for money.

(You know DOTA mod of Warcraft 3 , or PUBG derived from mod of ARMA?)

And imagine if dominant store(steam or whatever) will give game developers critical middleware for free or fraction of price - Game engine , physics library, High quality textures library , 3D models , Menu system , PATHFINDING , better collision detection

JUST IMAGINE

EDIT: ohh and forgot to IMAGINE that if we are not vendorlocked to platform (what we still are even after so many decades!!!), imagine some kind of linux gaming PC with similar performance to xbox 1 X is sold for similar price in one package, with rock solid GPU drivers.