I understand the appeal of DRM-less software. It means being free to play a game without having to prove to somebody time and time again that you are the same person who bought the game, in some sort of crazy "pirates are everywhere, so we bring the hammer down on everybody" sort of thing. People can feel like they're being considered guilty unless proven innocent, and that can be insulting.
DRM can be pretty annoying. I talked about in another thread how ridiculous the Wii's DRM system is; how Nintendo themselves have to authorize transferring any purchases from your old Wii to your new Wii. Some Ubisoft games are rendered unplayable (permanently paused) if the game suddenly loses communication with Ubisoft's DRM servers. If you take steps to bypass this DRM, *you* are considered criminal and in violation of the DMCA, even though you were only modifying software you paid for.
On the other hand, DRM done properly can be beneficial to the end user. Games are tied to your login credentials, so they can be moved around at any time on any computer, or even redownloaded as many times as you like. All that's required is for you to log in to Steam. Afterwards Steam can be set to offline mode. The XBox 360 DRM works in a similar way, except it's even better: it's also tied to the console, so you can play any game that's been purchased on your console, even if it was bought and downloaded by someone else (though only the purchaser could redownload it if it's deleted). Plus, if you get a new console, you can run Microsoft's online DRM transfer tool to move the console DRM to your new console. That's limited in how often you can do it, but there's no maximum number of times you can do it.
I'm a free speech, open source, DRM-free advocate for 12 years now, but here's what I care about more: video game developers being encouraged to make fun video games. DRM and open source concerns really come second to me in that regard. Joe Indie Developer makes a game, manages to get it listed on Steam, PSN, Android Market, App Store. It's a great game, but everywhere it's released it's full of DRM. Should we punish Joe by refusing to buy his game, just because it has DRM, and instead hand the market over to Shooter Game 2011 or Sports Game 2012? No, we should grit our teeth and bear it, because this industry needs more Joe Indie Developers, and more Gaia Industries, and more Mojangs.
The industry needs well thought out, wonderful, original games more than it needs a DRM revolution.