Hi,
I've used intrinsic value in many of my discussions on the "value" of timepieces (in fact, all "collectibles") and gone so far as to define secondary (or "derivative") concepts based on intrinsic value as one of the determining variables.
At any given moment for an individual enthusiast, best "deals" are the pieces which have the greatest "spread" or "delta" between intrinsic value for that particular enthusiast, and "market price" (that figure which "the market" values that particular piece, at that particular moment.)
Intrinsic value is defined by the enthusiast for themselves, the "market value" is what "the market" defines as the market price.
Now what goes into "intrinsic value" is up to the individual, and include the considerations already defined, but also possibly many more.
My last published editorial, part 1, tried to address some of the "soft" intangibles of intrinsic value. I'll try to dig up my txt of that editorial, don't have access at the moment.
Cheers,
TM