Since when did John get so quiet?

[AliP]

I've been listening to alot of older shows and have been surprised to hear John talking and introducing songs etc at concerts. I know John is the "quiet" one, but he seems to have really really quieted down with age. I wonder why?

I was listening to an interview from 1976 and John is just blabbing away. In fact, he talks more than any body else, even Stevie! He's actually pretty funny.