The reason this exists
Why is a discontinued sample the most expensive thing on the rail?
A sample earns its keep by being tried on. Then it stops. The designer discontinues the style, the season turns, or every bride in the area who wanted that silhouette has already bought one. From that day the gown is two costs at once, and only one of them is obvious.
The obvious cost is the money. The store paid the designer for that dress and has not got it back. It sits on the balance sheet as stock and behaves like a loan the store made to itself. The second cost is the rail. A bridal store has a fixed number of hangers a consultant can walk a bride past in ninety minutes, and every one occupied by a gown nobody is asking for is a hanger unavailable to a gown they are. That cost never appears in a report, and it is usually the larger of the two.
The usual remedy is a clearance rail. It recovers some of the money, and it spends the thing the store was short of in the first place, which is floor space and consultant time. It also puts a discounted version of your own inventory in front of the brides you are trying to sell full price to.
A sample is not worn out. It is worn out in one town.
That is the whole economic case. The gown has exhausted its audience, not its usefulness. Every bride within driving distance has seen it on the rail or in your photographs, and none of them chose it. Move it four hours away and it is a gown nobody has seen, in a size some other store has been asked for and cannot fill, from a designer that store may not carry at wholesale minimums. Dead stock in one store is a gap in another store's floor. RingUps is the place the two can find each other.