Can't remember if I said this or not, but a few years back KISS recorded literally all of their concerts and would sell copies at the venue. So like, they'd have a booth setup and you'd give them the money (think it was like 20-30 bucks). The first time around you could choose a USB bracelet or dual CDs. I got the bracelet. They'd then give you a voucher for after the concert. When the concert was over, you hand in the voucher, and you got your USB (idk how the cds worked). On the USB was the first half of the concert, and you got another voucher with a code you could use to download the other half of the concert.
Second time around was similar, but they only did USB and it wasn't a bracelet.
So basically, I really want them to sell copies of the audio recording of every concert. The technology exists.