Unless something has changed, the divide and conquer rig is included with all KJ's - that's the main reason I think they are worth a premium. For a while after the divide and conquer rig first came out you would see old stock that didn't include it, but I haven't seen one of them in a long time.
Prices do seem to have gone up. I just did some searching and saw someone say that it was $969 at roadshow in December. Here is a pic I have from a roadshow in July of 2016: