"rareity list or a price list" smells like a kartell. ;-)
Just think of it like this, how fair is it realy to ask for anything other than pocket change for 5-10-15-20 year old hardware? :-D
Nah, the only thing closest to what you're looking for is to go scout on Ebay and look at some of those prices... best is to find several auctions of the same thing and then cut the high and low of the auctions out as ebay sometimes get all weird. ;-)
For rarity there's no real answerr... if you look at ebay everything is rare no matter if it's still massproduced. Best thing is to just put it all in a list on a forum and ask and you'll probably get an answerr with a good indication of what it's is/worth.
I on the other hand doens't do much of the above, I see what I've given for it, what it have given me, what I think it's worth and then sell it and am happy with that... even if ppl sometimes thing I have a crasy low pricetag on things. :roll: