On the other hand, some games here on Gog.com are well over 10 years old....there's absolutely no way any DRM should be bundled using the examples cited above.
They don't offer new (ish) games either, so still no reason for DRM.
I love that this service exists, and wholeheartedly support it! As stated, there are various "means" of obtaining games here, but there's the bundled viruses and spyware issue with those....Gog does away with all that for a very small price, most are willing to pay for.

I don't really mind the concept of DRM in the least. I think companies have a right to protect their property, however, when the protection ends up becoming noticeable to the user by making annoying stuff happen to the paying costumer, that's what really bothers me.
So is not really DRM per se, but bad, poorly developed DRM making the gaming experience (or the user experience on his machine regardless that he's playing or not the game) a hassle and a half.
If the DRM is transparent and doesn't damage my computer or slows me down or restricts me in any way from enjoying the game I bought, I see no reason to oppose it. I'm quite aware that's not always the case or we wouldn't be posting about it.
Edit: I just noticed i wrote about something completely unrelated. I don't think GOG will disappear and the games they're selling are old. DRM is supposed to help the companies sell the most games at launch and slow down (because it never truly stops) piracy. Old games with DRM sort of defeat the point.
Life without GOG will continue though I see myself buying less if that happens.

I care about DRM, but I care more about getting awesome new games. That's pretty much the start and end of it for me.
As for GOG being the sole place to get no-DRM games that is far from true. Many, many retail releases have no DRM at all past a simple disc check, and no one should have a moral issue with a disc check.
So... there are a lot of options. If you dislike activation DRM or Steam enough to avoid games that require them then that is your business, there are still plenty of games to play like the new amazing PC game Dragon Age Origins for instance. Personally I care more about playing Left 4 Dead 2 right now than I care about Steam being required to do so, and even if it ends up being a 5-10 year rental for $50 it was worth every penny.

I have an issue with them when they spin my drive up and down and bang the crap out of it. Games prior to Crysis would do this a little, but I fully expected to have my drive torn apart before I finally beat that game (pretty much did a binge playthrough).
Thankfully I got a fixed exe and that problem went away quick.

Crysis did have an abnormally intense disc check. That is probably the only time I ever had such a problem though... most games give it a quick spin at the start and then never touch it again.
Crysis is also annoying in that the 64bit exe with the latest patch has no crack, as far as I know.

Those Gog people know what they're doing, they already have a sizable catalog, have tons of extras and sell at a low price point.
Gog won't be disappearing anytime soon...

Well, considering probably everyone who buys from GoG also buys modern games I'd say we'd all be okay.