I saw an article at IGN about how PC developers are blaming piracy as the reason some high profile games aren't selling in the quantities they should.
Interesting fact: Bioshock's Xbox 360 version was pirated ABSURDEDLY more than the PC version. I believe when I saw it at launch day, there were 26,000 people leeching the Xbox 360 version, and only about 1,500 some leeching the PC version.
Here's my two cents. First of all, nobody has actually published piracy NUMBERS that are NOT a fictional 'lost sales' report. Nobody has reported "X many PC games were downloaded by unique IPs" or "X many Xbox games were downloaded between Jan and Mar". These stats *ARE* traceable, and honestly I think that if they asked the Pirate Bay to simply keep anonymous stats (which they already do - TorrentSpy reported that less than 20% of piracy is video games - 50% are TV shows), that'd be the best barometer of piracy, as they have no reason to exaggerate or water down numbers.
However, because they don't give these numbers, and instead complain that they lost $45 BERJILLION dollars *AND* all have cancer because of piracy, they know that these numbers simply don't compare to the percentage of sales. So rather than actually publish a comparison that would render their arguments null and void, they blame their bad sales on their $45 BERJILLION loss, because a crappy game nobody wanted like UT3 flopped like a dying fish.
I personally believe the Business Software Association is simply trying to scare people with these reports to justify a more draconian DMCA, which is already a complete crock of shit.
Frogboy - there's an idea I'm going to submit to you - try asking torrent sites for that - totally anonymous stats that they host themselves. The problem is we need a comparison to real, actual factual sales, but I guess people don't like to give that number out (maybe because it's embarrassing sometimes?)