The writing has been on the wall about this for over a year but I'm still very sad to see it go. GOG was doing a wonderful, morally upstanding thing in preserving an era of gaming history that (thanks to DRM, the disposable-culture zeitgeist, and foolishly short-sighted decisions) is becoming less and less accessible to today's gamers with every passing day -- and by selling cheap, DRM-free products they were one of the few PC game vendors I was willing to patronize. Godspeed (and I hope you come through and give me a chance to download my stuff for archival purposes.)
Also: good job, fuckass publishers. Thanks to your idiotic attachment to invasive DRM for games that would be valueless without services like GOG, you have gone from a situation where you receive steady long-tail sales for all these old games with no work whatsoever on your part to a situation where everyone who wants them just goes and downloads the now-inevitable BigGOGPack torrent some jackass will put together and you receive no money whatsoever. Thanks a fucking lot!