I stopped buying DRMed products after purchasing Unreal Tournament 2004 a decade ago. That game had two releases: the normal release (7 CDs) or a special collectors edition that shipped on a DVD and came with a ton of bonuses. This was one of the first big commercial titles to ship on DVD instead, and was supposed to be a super simple install process. The game was supposed to install faster, and no disc swapping during install! Clean and simple, right?
Well, the DRM that existed on the DVD version was absolutely broken. After a few hundred (maybe even a few thousand?) of us went to the Epic forums to bitch about the issue, they finally admitted that the errors occurring during install were related to the DRM, a bug which didn't exist in the CD copy. Yes, that's right. Only those of us that paid the premium to purchase the collectors addition were screwed in our asses due to the DRM.
After a few days, there was no fix, so a buddy of mine brought over a pirated copy he downloaded of the 'net, so I could play the game.
The game was still mass pirated. Those of us who legitimately purchased it were totally screwed over. This really helped the company, so I've yet to purchase any more of their games on disc since then, and never again will.