I think the problem is a lot of non-die-hard collectors just see the Mark 3,4, and 6 as being too similar. So to the casual collector they might feel they only need one red and gold Iron Man. The mark 5 is different enough that more people would likely buy it than both the 4 and 6 (and perhaps in addition to their 2 previous mark 3s). We saw the proto for the Mark 5 so its coming. I'm not worried about that at all. But HT seriously needs to get RDJr license approval before they launch a new Iron Man figure.