I think it's just the LS busts that are not popualr in general. I've seen the Im Ex go barely above retail like 4 times on ebay. Thats a loss for those sellers.
Regular Doom goes way below retail. I almost bought one for $110...
Still, they've both very detailed and well worth the money.
I have a gift card and reward points and still this LS bust doesn't interest me unfortunately.
as said previously, I would love to see SS concentrate on statues instead of LS busts.