On pricing rare objects
IMHO, if you have something that is rare and valuable, then the price you ask is "whatever you think it's worth" and the value of that object is "inestimable". I'm sure you've all heard of pieces of the Gutenburg bible, original sketches from Leonardo da Vinci, and such go for unbelievable prices. It appears that z-11 stuff, while not quite in this category, is gaining value quickly. Well, not value, but price...
In a land where 20 year old computer whizzes can instantly be millionaires (OK, that's getting harder and harder, but it will return), and prices for real estate in San Francisco and elsewhere go for millions and millions, what's a few $10,000 bills here and there along the way???
On the other hand, most of us working stiffs don't have access to capital like that, and prices seem out of touch with reality. The rarity of an object makes it open for such pricing. Ever think 690 heads would cost upwards of $2000?
So hang on to your rare stuff, at least don't part with it easily, and set some aside for those days ahead when you won't be able to buy it off of yourself
Oh yeah, and drive 'em if you've got 'em
Cheers,
TomK