I love guitars and, if I had that kind of money, I could go buy out entire inventories of several dealers. The instruments might not have autographs of the titanic icons of popular rock music but those signatures amount to about Jack Squat as far as the value of the six string is concerned.
If you love guitar, you might be aware of my ex-brother in law, his name was Stephen Michael King and he was the world free finger champion 3 or 4 times. Here’s some info on him:
https://www.guitarbystevenking.net/
At some point he has worked for a number of the different big name guitar companies touring and performing with their instruments. Haven’t seen or heard from him for about 10 years when he and my sister divorced.
rwood