Giok, I'd generally agree with you, and I normally buy copies of favorite music to share with friends. However, I also think that the artists and/or recording company have a responsibility to keep a recording in print if they want to continue to receive royalties.

Elektra EKL-161, a copy of which, c1960, sits by me as I type, has never (at least as far as I can tell) been republished in any form other than vinyl. Elektra itself was absorbed by Atlantic Records, then by Warner Brothers Records, then by AOL Time Warner, and finally died a couple of years ago. There probably are used copies out there, and the artists get exactly the same royalty from a sale of a used copy as they do if I copy mine and give it to someone else as a mitzva.

BTW, Theodore Bikel is very much alive and actively performing. I'm not sure about Geula Gill.