One thing pirates don't realise is that they are hurting themselves. Now, most developers are probably not going to stop making games because of pirates. There is another consideration tho.
To make my point, I will paraphrase an article I read about piracy between two people, one of them the author. The first one tends to pirate quite a bit, and said that he didn't like a certain program that changes the visual style of windows because the borders are too thick. The author asked if he would buy the software if they did make the style to his liking. He replied probably not. The author then said that the software will never be geared towards people who steal it.
If there is a demographic of players who tend to pirate games, it is in the designer's interest not to gear thier games toward them. They are going to make their games for the people who buy them
