> In other words, the people on Napster-like 
> services are more likely the heavy music buyers

I don't think this is true, most of the people I've talked to who
download lots, want top 40 hits to burn to cd for their car (because the
radio is only playing the song once an hour).  Mostly middle class young
types with enough money to buy the music but they want a big house and
an SUV and have to cut corners somewhere.  But they can pay for
broadband and a fast pc (with a cracked version of Office pro) and an
mp3 car stereo and pirate satellite cards and game console mods chips
and VCD players, etc, etc, etc.  There is a huge mainstream pirate
culture.

Lee Elliott