A DM recently notified me that I was committing a rules violation by using part of a player shop for storage. As a result, I wanted to ask for some clarification on this ruling, in addition to providing some additional context for the nature of this storage. I am not so much interested in contesting the ruling as I am in asking for details regarding its reasoning and application - I often see people scoff IC about those who use their shops as secondary storage, but this is the first I've encountered actual DM intervention on the topic.
Storage as a Concept
Just to make it explicit, storage in this case refers to placing an item in a player shop at exorbitant prices in order ensure nobody buys it. I'll point out foremost that this concept is also somewhat nebulous - I've stored cheap items before at well over their value and still had people buy them (much to my chagrin), yet I've also seen other stores listing goods at what many consider insane prices yet those were apparently listed with legitimate intent to sell, regardless of whether they actually do. At what point does an overpriced shop with slow sales become secondary storage?
Proper Use of Shops
I assume the main concern of the ruling is that nobody wants player shops owned by people who just use them as another bank vault, rather than actually selling goods. How does this apply to shops that do see a considerable amount of traffic and sales, though? In my particular case, I have records to attest that the store in question has revenues of multiple millions of gold every in-game month, and I am aware of others who simultaneously run very busy stores that also happen to act as storage at times.
Customer Orders
I'll also mention the items I store have never been for personal use - they have all been items that were ordered by other players and were awaiting pickup. Any that aren't delivered within ten RL days are relisted at prices for general sale.
To the DM who spoke with me, I also want to reiterate that I'm not trying to take this over your head. I will be trying to vacate the items in question as soon as possible (frankly, I was already - I want those slots for new product), but primarily I wanted some more details on this particular ruling regarding shops and in-game chat did not seem the best venue for the topic.