I don't own anything previously 'celeb' owned, but I get the appeal. The rational side of me says it's a daft notion, but the sentimental side of me looks at it in same way I look at anything vintage, the stories locked within.
If these instruments could talk what stories could they tell? I have a few non valuable vintage basses just because they're lovely things that have seen more years than I have. What pubs, parties or stages have they played, what songs have been written with them, what emotions have they stirred in people? If they've made it through fifty years then they deserve some respect I feel.
I have some vintage tools and wonder what have they fixed, what family crisis have they averted or how much pleasure have they brought the old man tinkering in the shed? My 1949 Rudge came with the original toolkit in a leather saddle bag, who have those tools saved when their bike broke on the way home from work?
A celeb owned instrument has stories to tell.
BTW, I'm a sentimental old fool! 😁