My two cents: EK lost a customer; the bridges between the chips will not fit a rampage IV extreme as far as I can tell, without getting a blanking plate. That added to the fact the old style blocks (purchased about 4 months ago) are no longer available meant that I would have spent well in excess of what the competitors are charging.
Did they bother to think: Well, enthusiasts buy these cards, will they fit enthusiast motherboards without needless complication and changing the location of other cards?