Piranjade: And that's not what I want nor what I need. I want and need the installer. GOG gives me that. Steam doesn't.
Matruchus: Ah, well. As I said its your decision and most of the games will never come to gog and that is a fact as long as statements from AAA developers about drm generating profits hold.
*shrugs* I can very well live with that.
I have bought three games on Steam so far, the rest is from bundles or were gifts.
I have 101 games on GOG including more expensive ones as Age of Wonders III.
So maybe "most" games don't come to GOG but I have enough wonderful games to play here and can just decide to not give those developers and/or Steam my money.
I can also help by looking where the licenses of old games went and contact those people to help getting cool old games on GOG.
I can do a lot t further GOG and the wonderful service they (generally) provide. And I certainly don't need to go running crying to Steam.