Hey that is what I love about live boots is you get a captured show when the band is really in the zone and get a super priceless moment of sonic tapestry that you will never forget. There are some Who, Led Zeppelin, ZZ-Top, Blue Oyster Cult, George Thorogood, and Black Crowes boots with some improvised long jams that will live a person speechless and astounded. Those are just a few.
Err not that I would own or buy such recordings. (Disclaimer if a RIAA person is reading this thread.)