Ars Technica has a great writeup on the subject of reselling MP3s. CDs are on the way out and I can’t remember the last time I bought one (probably Vampire Weekend). The thing is, you could easily resell a CD. Take the physical media to your local CD shop, trade it in for a few bucks and that’s it.
So what about MP3s? There’s no physical disc or anything to pick up and if you resell it, what’s to stop you from copying it to an external hard drive and then unplugging it? Answer: There isn’t. Reselling MP3s is an idea that just cannot work, no matter the execution. Don’t blame me, though. Blame the DMCA.