I'd like to offer a different perspective; with the understanding that there are exceptions to every rule.
If we put aside audiophile expectations (no way even the best arena sound systems can have the purity and coherence of top audiophile gear) and barring truly horrendous sound, there is much to enjoy in live performances with less than great sound IF THE BAND IS UP TO IT. In other words, the more happening the MUSIC is, the less important the quality of the sound becomes. Consistently good live performances is what separates the great acts from the impostors who rely on recording studio band-aids and multiple takes to sound good. After all, what is the point in attending a live concert when one hears a rendition that is exactly (performance-wise) exactly as on the record; but with inferior sound and instrumental solos almost note for note as on the record?
If we put aside audiophile expectations (no way even the best arena sound systems can have the purity and coherence of top audiophile gear) and barring truly horrendous sound, there is much to enjoy in live performances with less than great sound IF THE BAND IS UP TO IT. In other words, the more happening the MUSIC is, the less important the quality of the sound becomes. Consistently good live performances is what separates the great acts from the impostors who rely on recording studio band-aids and multiple takes to sound good. After all, what is the point in attending a live concert when one hears a rendition that is exactly (performance-wise) exactly as on the record; but with inferior sound and instrumental solos almost note for note as on the record?