MEA CULPA. I have been duly chastised.
Yes he does it for the HIGH of it. But as we all have said many, many times, MIX IT UP!! Also, as said many times, he is playing the songs for the average concert goer and a Macca fan. Not a die hard Macca fan like all of us here but the average macca fan.
NOTE: I just like saying he has to recoup money lost in the divorce settlement. He doesn't need the money. He does it 'cause he likes singing and touring and playing for the fans. And we the fans like it too, but . . . . . MIX IT UP!!
I go now.