There are great studio recordings and great live recordings. I lean more to live recordings as they have that instant organic sound, record a performance in history, the ambience of the venue comes over and tend to have a far more punch in that musical message and last but not least it is live as opposed to an overworked, overpractised studio performance which often sounds stale and predictable, ofcourse the recording in question should be at least average otherwise all is nearly lost. I suppose for me it started with Deep Purple - Made in Japan album, the producers intended this album yet the band were not in favour as live recordings at the time were known to show up faults, errors etc.. But surprise, surprise the Album was a great success, it showed the group at full flow, the musicianship of the players and their love for improvisation (Ritchie Blackmore was not a fan of studio albums, liked to change it in each concert)