i've had 2 sets of DK's i think the first ones with the patent leather psychedelic design, picked those up for $150 brand new. i got super lucky, i see them on ebay for $700+
those got worn out. i got those at the end of my 1st season 4yrs ago.
i picked up last yrs DK, i'm sure the tech is better. they are comfy as $hit. i'll stick with what i know..