All these million dollar musical instruments, or even just instruments themselves are interesting, but I'd never actually have the courage to use it.
Take the Barrett-Jackson auction. They have some amazing cars go through there. But I would NEVER buy any of those rare, original cars. These cars have very little miles on them, and the value would plummet if I actually drove them.
And being a little utilitarian, I wouldn't buy something that just to stare at it. I'd rather have one of those reproductions.