Doubtful. The people that want to keep theirs won't sell it. The people that do will be few and far between. They will become harder to find in the years to come and the prices/demand will only increase.
I'm going on a limb here but I reckon the cost of shipping the thing is already high enough as it is that no one would want to sell it cheaper than the original price.
Had some custom shelves put into my office. Nothing fancy. The Tumbler fits and so does the '89 Batmobile. Bat Pod is on my desk and camo tumbler is still in the box tucked behind my patient exam chair. No idea where the '66 will fit...when and if.