Preban is a misuderstood term. The original ban was 1989 imports. The ones after were simply modified to meet the requirements.
The effect of the 1989 ban did little to effect pricing on pre1989 imports. Since they will never appear in this country again in "original" form, they`re price has done nothing but climb and will continue to do so. Whats a pre89 HK worth/Sig 556/Sig beerkeg308/Belgium FNFAL and the countless pre89 AKS, just to mention a few. Price a pre1989 Sig 556 and then price a incountry........I think reality will strike hard.