Piracy is easy regardless of DRM because the pirate himself, as in the guy who downloads the game, doesn't need to know anything about cracking, hacking or even basic coding. He just copies files or doubleclicks the .exe that does the job for him. It really doesn't get much easier than that.
The guys who do all the 'dirty' work however do it for fun, for fame, for the 'scene'. They don't care what game it is, what company it is nor what you do with it. They had their fun with 'proving their coding skills' and are off to next title.
Sure, if every company would decide to go DRM free people wouldn't buy a game just to support given company, but from consumer point of view it would be best thing to happen, and then those companies would most likely try to find new ways of showing their 'superiority', trying to improve in other aspects, like consumer support, additional content, bonuses, etc. End user always benefits from competition.