Most piracy that involves actually selling the music for profit occurs in countries where this is the norm. Russia, China, etc. And even then, most of the activity is limited to well-known artists.

Honestly, there is way too much music out there to be worried about it. Most of us are just a tiny drop in that ocean. When you're as big as Coldplay, then you can worry smile But then again, if you're as big as Coldplay, you've probably got a few million fans willing to pay for your music, so who cares about some street vendor hawking counterfeit CDs in Siberia?