For a shooter, good used Sig 220s with the American mag release , grips and dovetailed front sight are available at much lower prices, and IMO are better shooters than the BDA. If you want to sit around and look at a gun in a box that might, or might not, appreciate to any significant degree over the next decade or so, I suppose the BDA might fill the bill.
Nice guns, but I would never pay that much for one myself, even if new.