This hypothetical person is selling it. The average software pirate generally does not, in fact, sell what he pirates. He keeps it for personal use, and if said pirate thinks that the performance is awesome, he will buy a ticket to experience it in-person, since footage ripped from a $60 camera is not equivalent to the full experience at an actual broadway show.
Lots of companies are combating piracy effectively, not through more sophisticated DRM, but by providing a better service than the pirates. IMO, that's the path companies should strive for. If you can provide something that pirates cannot, you're guaranteed sales, perhaps even moreso than if piracy did not exist as pirated copies serve both as marketing and as a "full trial" that may compel people to purchase the game later down the road if they want to benefit from additional features offered by the company. People may pirate SC II for the campaign and decide they want multiplayer, so they buy the game. Those same people (assuming Blizzard didn't release that starter edition), with no access to pirated copies of SCII as a trial, may not have been compelled to purchase the game in the first place. Thus, it can be argued that piracy has actually boosted sales of StarCraft II, rather than decreased as some may be inclined to claim.
Post has been edited 1 time(s), last time on Jan 23 2012, 7:06 am by Aristocrat. Reason: typo