Frankly, I don't think that turkey's brains are sophisticated enough to tell any decoy from a real turkey. They are birds. I think they key in on color and shape. If it looks like a turkey, it's a turkey. I've got an old foam hen decoy that I turned into a jake by spraying the body flat black and using tennis shoe paint to change the neck to white and the top of the head red. The toms attack it as if it's a real jake. Turkey hunters are, by nature, "gadget" guys. I think the expensive realistic decoys are designed to attract turkey hunters, not necessarily turkeys.