mrkgnao: That was exactly my view until about a year ago, when I learned that the steam client was not mandatory.
eric5h5: It is mandatory for many games, and you can never be sure that an update won't make a formerly DRM-free game into a DRM-required game. I personally bought a game on Steam last year because it was supposed to be DRM-free according to a list that maintains such things, and it absolutely refused to work without the client. So I refunded it.
That is true, but that is also true of GOG (see No Man's Sky fiasco, luckily resolved, or Absolver and CP2077, not so), not to mention that on GOG you run the extra risk of not having updates at all (see second class citizen thread).
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RafaelRamus: What you described is the full game, after installation, not the same as the installer.
That's true.
RafaelRamus: The installer usually occupies less space in the HDD
Unless you compress the installed game with zip...
RafaelRamus: Personally, I find the installer to be worth the extra few dollars.
Not me, not anymore. Especially not since I got burned by getting a Divinity: Original Sin offline installer that has a serious bug, and GOG refusing to release an older version installer that does not have the bug (despite the developer encouraging it to do so), claiming that one can always use galaxy (yes, the optional galaxy) to rewind to the older unbroken version.