Yes, GOG is the only place I buy games from. I don't want to have spyware installed on my PC in a form of DRM or be able to play games only while connected to Internet, so I don't use Steam at all.
DRM isn't even worst for me, I can always use a fresh virtual machine for a game and wipe it out afterwards, but constant Internet connection requirement totally kills it, as I don't have time for games often and these rare moments I play something is usually on a laptop when I'm on vacation out of town with no reliable Internet connection. GOG is great, I can buy, own and play a game whenever I want, wherever I want and expect it to be playable many years in future, even when official servers are long dead.
Yes! The most interesting part is that I bought the collectors edition of some Ubisoft games back when they were released, the DRM servers were shut down, and now they won’t work – but I bought them on GOG again, and the GOG version, without DRM, works just fine.