Yes... I wish you would read a few cases.
I'm not a lawyer Bob -- I hire them if I need them, and they can read all they like...
I personally just want to get paid for what I do, and I only license certain rights to software or music. If somebody needs additional rights above and beyond the standard EULA, I will charge them for it. I don't SELL songs or software -- I only license usage rights. You either agree to those rights or not.
As to the original point:
I get to see a lot of folk's music library listings, just by nature of my work. My DJ software can communicate with the Mothership, so to speak, if I require that.
I acquired a copy of somebodies drive years ago -- it contained about 160,000 songs -- I use it for testing, because there are lots of dupes, bad tags, etc. The one's that are being sold now, have even more. It's not just the kids using this, it's longtime "professional" DJs.
They'll buy one of these loaded drives off CL or eBay, and then duplicate them for their friends and/or employees. They're easy to spot because of the tag issues, and folder structure.
Funny story: Had a dude call me not too long ago, and he was having some problems with his library (500,000+ songs)! So for S&G, I asked him what he charged for gigs, and how many he did a year. Answer was 10-30 gigs at around $400-500 per. So, I asked if he purchased all his music through legal channels (we'll hold that debate for this exercise). Yup he said, got them off of iTunes. So let's give the guy the benefit of the doubt, and say he does 30 gigs a year @ $500. That equals $15,000 per year. But he apparently paid at least $500,000 for his music library, and must have spent at least 347 solid days downloading them (that's assuming 24x7 @ 1 minute per song). Let's say realistically you did 10 a day -- that's 50,000 days -- according to my calculator, that's about 136 years!
Again, according to my calculator, it would take roughly 33 years to get any ROI off that library that you started downloading in 1876.
Just saying, y'know... xf