Also if it occurs again, this will be the last time as a customer to invest in gog games. (episode 3)
GOG.com often meets quite a bit of resistance from developers, either with higher prices or delayed releases, because they are inherently hostile to anything DRM free.
By not investing in GOG.com essentially you are handing them the victory, waiting 24 hours more isn't that much to ask really, it's not like it's such a bad delay.
I sincerely cannot conceive of buying older games on Steam, at least here they tend to work at a base level, on steam stuff tends not to work at all and unless the developers themselves take an interest stuff never gets fixed.
And I tend to buy newer game here too when I get the chance.
Here's a thought, maybe don't purchase games before they're released complete and bugfixed. This Early Access, Episodic, Season Pass, Pre-Order stuff is anti-consumer, it ONLY benefits the publishers/devs. Patients is a virtue, the instant gratification crowd is one major group that has allowed the games industry to curbstomp consumer rights...
The only Early Access title I've ever bought was House of The Dying Sun, but that one was more or less complete and was lacking only some minor added features (a few achievements and the "wave clearing mode", nothing major) and was of a genre I'm always hungry for anbd wanted to sustain it.
And I think I've preordered only the two Monkey Island on Steam because I never had a legal copy of those and they still weren't here because the late Lucasarts was already going down the drain.
Though regarding episodic stuff might not actually be a bad thing in some cases, this is my first telltale after the first season of Sam & Max and Tales of Monkey island (which I bought already collected) and I'm not disliking this montly installment thing, but then again, episode 3 was already out when I bought it, YMMV I guess.