Here's my Andy/Ron story...
I worked in a local music store for a few years while I was getting my studio off the ground. One Saturday morning a familiar face walked in - Ron Howard!!! He walked right up to me and said he had a guitar that he needed repaired. I opened the case and it was really old and beaten up.
I called over our resident guitar guy, Mike. He's really good; lots of the big local names come to him for their guitar repairs. Mike took it out of the case, and looked it over. He suggested that a new guitar of even modest quality would be less expensive than trying to restore the one Ron Howard had brought in.
Then Ron Howard told us a story; this is the guitar that Andy Griffith played throughout Mayberry RFD/The Andy Griffith Show. He wasn't completely sure, but it may also have been the guitar he played in "A Face In The Crowd." Andy Griffith gave him the guitar when the TV series ended.
Needless to say, Mike did a phenomenal job restoring the guitar. He always did anyway, but he put extra care into that one.
BTW, Ron Howard is a really nice guy.