Well, I wanted to settle this question of price for the Spanish hammergun, so I contacted AyA. To my surprise, Senor Inigo Lopez informs me that they are anticipating a retail price range from $20,000 to $25,000. That's substantially higher than I anticipated, although some of you folks seem to have been right on target.
Now I have to suppose that the "extra lusso" 28 gauge Italian hammergun, engraved by Vico Temponi, which I purchased new in Gardone Valtrompia 20 years ago, must be worth a cool $100 grand.
JKBvF