I have read a few of the responses and have found virtually no alternative suggestions to combating piracy than DRM.
This calls for a car analogy. Using DRM to stop piracy is like dumping sawdust in with your oil to fix a knock. Sure, the knock might go away for a little while, but at the end of the day you have done far more damage to your car than you would have if you had left it alone.
People may not have an alternative to DRM for stopping piracy, but DRM only stops the most casual of pirates and causes undue harm to legitimate customers.
This post itself will prove or disprove my theory.
You can do more with a kind word and a gun than with just a kind word. - Al Capone