Part of the problem with short run stuff is the lack of aftermarket support...
Few people will want to modify a limited run vehicle
Fewer still if it's a Durango that already has over 700hp
And so we're stuck with the same support as the TH - which isn't horrible - but how long will it be around?
I, for one, would be happy with a 1000rwhp Durango that can tow 8400lbs... I just don't have the $100k to make it happen right now