Knownothing,
I disagree - While I can't speak to the recent spate of reissues, I can tell you about the original LPs. I think many folks would hold Waiting For Columbus as one of the best live rock albums ever made, with sonics that range from very good to near spectacular and a performance that still enthralls after all these years. Feats Don't Fail Me Now, The Last Record Album, Hoy-Hoy, Down on The Farm, Time Loves a Hero and parts of Dixie Chicken all enjoy relatively fine sonic traits. Lowell George's solo LP, Thanks I'll Eat it Here has excellent sound as well (maybe the best of the bunch). George Massenburg knew what he was doing.
-Richard