had the same conversation w/ the cabelas guy last night. isn't about what i "need" to shoot. the only reason for wanting a gold auto is "i never had one" and the only thing i shoot are clay targets. so if i have the gun and want to shoot it that's what i shoot it at. nothing to do with the guns purpose.
but i agree, you're not going to find a gun that's reliable completely across the spectrum of all available shells. systems just can't accomodate that kind of variation. i can't even imagine why people would want a gun that could accomodate it without making some kind of adjustment, like on an auto-5, or the early remington gas guns (58?). who ever needs to instantly switch from a 3.5" magnum to a 1oz load such that he doesn't have time to fiddle with something. somebody's goose hunting and "OH! there's a woodcock! let me change loads real quick!" that is just not a reliable scenario.
more probably it's people who are so uninterested in the guns themselves or of such little technical acumen that they can't deal with making adjustments on the guns.