The one linked to in the 1st post sold for $40. Seller is in Canada. And as John speculated, the listing mentions:
We are delighted to inform you that a batch of N-scale trains, part of an exceptional collection, will be available for purchase very soon.
This impressive collection comprises a variety of N-scale train models, ranging from locomotives to wagons, as well as accessories and decor elements to enhance your model railway experience.
Could be someone's estate, or someone getting out of the hobby. I wonder if they are/were TRW member.