I'm assuming the owners had investors or loans or some other financial reasons that would prevent them from spending a lot of money and then simply parking it forever.
And wouldn't property taxes or city nuisance abatement fines nibble away at the property over the years? It can't be completely free of carrying costs, right?
Even if there is no ongoing cost for the ship, wouldn't the owners rather have sold the furnishings rather than leave them to rot?
I did some research and found that there was a huge court case that didn't go in the owner's favor. So perhaps the owner is too emotionally invested to cut their losses?
Or perhaps they are tremendously wealthy and using the loss to write off other business gains? Or maybe it changed hands through inheritance, so the owner doesn't care about recouping the initial investment? Or maybe I'm overestimating the remaining value, and the thing is already a total loss?
This is all speculation. But it would be very interesting to learn how such a large venture was left to rot...