Just want to pass a quick comment regarding Europe being very " insular " as per Phillipe's post.
I have a few slot car mates here in London with individual collections exceeding well over 600 cars each. I mentioned U.S brands such as COX, Classic etc.. to them on a few occassions & was puzzled with the reply.. a reply from seasoned collectors mind you.... they had no idea what COX is !
this I percieve may well be a fairly common trait here on Scaley Island.
One factor I feel is of worthy discussion is that of compliance in regards to rarity.. in this, I guess I want to mention, is there a strong mutual comprehension of a car bordering on rarity.. eg. several prototypes that surface and drop out again.. but are still known to be in circulation. Being in the U.S, I'm sure you are aware of the sporting collectible company Beckett. Beckett is the ultimate destination for professional grading, pricing and news coverage devoted to all things collectible (basketball cards mainly).
I'm sure this has been blasted and discussed before but is there an appraisal system for slot cars & kits.... a way of having ones cars professionally graded...
How Rare is Rare .. well lets take a little peek & see what we can see.
Of course there will be critics who jump up and down spouting .. This is preposterous..who dare even consider such . .Why that's blasphemy.. any more & we'll have you drawn & quartered... this I presume will open pandora's slot box but a car naturally looses a certain amount of rarity as its condition deteriorates.. or am i mislead. it may merely looses value..but still holds its rarity. You might be standing there with only a guide flag after Fido (the neighbors dog) has just chewed your ChapE2 up into little wee pieces. (nevertheless... still a very rare guide flag)
On a more personal note, I really enjoy the way this thread is holding a dynamic sway to 'RARITY' & other factors that I am sure will be bought to light as the discussion delves deeper.