Assuming current market, or whatever - just keep it sane.
How much do you think Willie Nelson's guitar Trigger is worth at an auction - assume, of course, that Willie is dead. (He got run over, 'cause he was playing On The Road Again.)
But, with a slight twist...
I'd like to hear your reasons for the dollar valuation that you give. Regardless of the total dollar value, could you tell me why you put that specific value on it?
If you need to ask any questions about Trigger, before assigning the value, I'll do my best to answer them - but there's a ton of resource material and Trigger is pretty damned famous.
If you've never seen the following, it's maybe worth looking at:
https://www.youtube.com/watch?v=uhQuJTc5yFY
Do note: I may use some of your answers in an article, unless you object.
EDIT:
It's your box of crayons, you can color any picture you want. In other words, I am not sure there's really a 'wrong' answer (unless one deliberately tried to make one, by saying something like 'I like pistachio ice cream.' Which, while nice, doesn't really answer the question!)
I'm not sure I'd smoke 'em.
I'm sad to admit this, but I'm not sure I'd even play the guitar if, by some bizarre miracle, it came into my possession.
I'd play the fuck out of it, with all-due reverence of course, if it were Willie himself inviting me to play it. But, without that component, it'd just go into a controlled environment and kept as stable as it can be.
Far more probable is that I donate to the museum that ends up with the guitar, as they're better funded and far more adept at that sort of thing than I am.
Which is kind of sad. Trigger might possibly deserve to be played still. I'd just never do it.
I'm never gonna be invited, let's be real. Even if I owned it (again, not realistic) I'd probably never play it. I'm not sure I'd ever play it, even when I first got it. I'd justify it by saying that I'm not worthy - but there's more to it. I don't want to damage it. Which is a wee bit sad.