thoughts/opinions on computer collecting value

Every once in a while, someone will email me after seeing my computer collection and want to know how much x computer is worth. I usually reply back with the anecdotal reply 'its worth whatever someone pays for it' or give its real value, usually in the $5-50 range depending on what it is. After I told someone that, he said he was going to hang onto this certain computer for a while (nothing rare), like it will appreciate in value worth more than gold. <sigh> I collect old outboard motors, and people are always surprised to hear that their 50-70 year old johnson outboard is only worth < $100. I've seen both computer and outboard collectors play down the monetary value of collecting these things more than the investment value and wanted to have an essay about it on my website for people to read, but what should it say? I'd like to have something written that would discourage speculative inflated prices for common machines so stupid people dont think an apple //c is worth $100 or similar. what do you say about collecting and value or lack of value thereof? remember, off topic posters will get the molten iron treatment! ACVM www.nothingtodo.org/classiccmp/museum.htm