More broadly there is a set of tools you can use to control piracy: 1. Moving (part of) logic online 2. closed hardware (xbox or iPhone) 3. copy-protection a

More broadly there is a set of tools you can use to control piracy: 1. Moving (part of) logic online 2. closed hardware (xbox or iPhone) 3. copy-protection as a way to delay the proliferation of pirated copies 4. Lower prices to decrease the pull 5. Free-ish model (ads, or loss-leader).