Colours like Gecko, Crush, etc will always be a double edged sword to live with, as well as selling, but you don't choose colors like that because of logic!
IMHO, the current colour range isn't my favorite that Jeep have had, and I'm battling with deciding whether to go with tried & true or go left field.. Then again, if there's a noticeable difference in price between cars in stock & cars coming in that'll certainly help with the decision process!
And when it comes to cars in general, a wise man once told me - a car is only worth as much as people are prepared to pay for it.