Mellotronists

A cautionary tale: 
The prices of exotic cars such as Ferraris, etc., was "bidded up" in 
the '80s, and it appeared as if there was no limit to what collectors/
investors would pay for these things. Well, there was an end in sight - 
e.g., if you bought a used 308 Ferrrari for $50 Grand in 1988 (with the 
thought in mind that it was a "superb investment") and stored it in 
your garage up 'til 2003, you'd be lucky to get $25 Grand for the damn 
thing - yes, the market "crashed". Could this happen to the used 
mellotron market? What are these things intrinsically worth? Is 
bringing a used mellotron "up-to-specs" after the initial $3 grand+ 
outlay economically viable... OR, is it a safer bet to buy the BRAND 
NEW and IMPROVED Mark VI? Buying a used mellotron sight-unseen just 
might offer the unwary purchaser an un-paralleled opportunity to 
achieve personal bankruptcy. (That's just my opinion, of course!)
Thanks,
G. Niles

P.S. - When I sell my 308, I am getting that NEW Mark VI...