Exactly. My main objection would be if it was set up like the current shops are.

Room A -> Room B

Room A is where the shopkeeper stands, and room B is where the loot is. If the loot is always in Room B, there is no searching around. Once someboody can get into Room B they pretty much can just repeatedly loot the same room over and over again to rob the store.

If the chest can be placed anywhere, say in the seller's castle or mine or inn room. I have no objections to it being lootable. Perhaps I should have been more specific.

"I have an objection to the contents of a store/auction being in a stationary location known by all that is not movable and is also lootable by a semi-skilled player".
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If you say plz because it is shorter than please, then I will say no because it is shorter then yes.