They don't make it anymore, and I think not a lot of them came to the Canadian market. Fair market value is whatever someone is willing to pay/accept. For a new one I gave Ellwood Epps $279.99 plus tax in January of last year. At > $300 I probably would have tried a different scout scope, but I knew I would like this one enough for the price because I already have several Classic Ks, Vs, and Rs.
My opinion of the quality of Weaver's Classic line is that it is very good quality, worth what they cost new when we could get them, and underappreciated.