I have one, so maybe I'll try it. It's been a while since I did some custom mojo. I agree with the points that Luke's only 'negatives' are the lack of ball jointed shoulders/elbows. Beyond that, he's great.
I think there will be select pieces that may sustain value in the future, but I can't see the point of trying to guess. The line has such a longevity now and items are so mass produced that folks thinking this is a down payment on the future will be disappointed.