With nearly 1000 concerts across my 40 years of show-going, I've seen a lot of the same artists multiple times, and there are many I'll see every time they tour. Then there are some I used to check out whenever they hit the road but eventually bailed. Example One: Rod Stewart. Back in 1982, Rod was the fourth artist I ever saw live. I loved that show and continued to see him each tour through 1993. But then I just lost interest. He seemed less and less invested in the shows and I felt like he mailed it in too much of the time. Saw him one more time a few years ago for the heck of it but didn't feel I'd "lost out" because I'd missed 20 years of concerts. Your examples?