Altough the BSA tends to tell the world, the world is bad, because it pirates software all over the place, it might be that the BSA isn't really honest.
An Australian website reports that the BSA does not count Open Source software as competition of payed software. As the BSA just does some multiplying and dividing (well that's easy said, the exact details are here, it seems their figures aren't really close to reality:
They did not include the spread of open-source software as a factor. It is likely that open-source software, that can be legally copied and distributed free, follows a similar trajectory to pirated copyright material - one person downloads a program and gives copies to friends. But, because open source is legal, it is often distributed on the cover CDs of popular computer magazines, accelerating its spread into business, government and homes.
Although use of open-source desktop applications may be comparatively small, its predicted increase may undermine the accuracy of future piracy surveys.
Read the entire story here. Of course it's a given fact that there is piracy, but if you make the figures a little higher, that's just good marketing...Source: Theage.com.au