The prices went through the roof with poor resale value unless offered at prices very favorable to the seller.
Today I looked at competition at lgs. Twenty gauge 28" pre War J.P. Sauer choked 1/4-1/2 chokes pow grip no cheekpiece or swivels about 5.5lb. This is East of the Urals Siberian Special meaning it had single non-selective mechanical trigger in large trigger guard plus aggressively checkered safety button. All that goodness for asking price of $1200. The only negative were 65mm or 67mm chambers. Hard to compete with that.