I presume you are referring to the M32, a darling among the trapshooting crowd. It might be telling that the shooters never seemed to feel the need for a Miller trigger.
I haven't looked for a while, but up until five years ago or so the prices always seemed to be pretty attractive. I almost jumped on a very nicely engraved four-barrel skeet gun for $4500 , and have kicked myself once or twice on account of it.
As to the GI example, it is a stunning gun to be sure, but I suspect one could replicate it a couple times over for the price.
