I think Hot Toys may have over done it for this diorama. The reason why it's so expensive is because they actually hired an engineering team to design the mechanics of this dio for Hot Toys. It's supposed to be the most complex thing HT has ever done with an insane number of articulations, but in reality most collectors would rather just get something that is much simpler and much cheaper, something that just looks the part, and use it as a display piece and that's about it.. All that engineering is a little unnecessary that just jacks up the price in the end..
In the end they make it very cheaply and when you try to actually use and pose this it will break. The mechanics will only work if the parts are made sturdy enough....and Hot Toys never does.
Maybe they are more delicate with their touch in Hong Kong