They're not expecting these artists to look and sound like they did 40 and 50 years ago, They don't care how many original members are in the band, if any. They just want to hear the hits. The songs. I saw Ringo a few years back and I thought he looked and sounded great. Todd Rundgren too. America was incredible all these years later. Huge difference between Bad Company in the 70s and Bad Company recently. Time does that. I'm just glad I took advantage of the Chicago concert scene back in the 60s and 70s and saw so many of the greats when they were lean, mean, music making machines.