We're talking about thousands of cartridges, because the importers are in regions like Asia, Europe, North America covering huge territory with huge population of people and there are many audiophiles and high-end shops. Do you think Nakatsuka-San making 100 cartridges and for the whole Asia they have only 25 cartridges in stock?
You can't be an importer if you can't sell a lot, you can't buy just like a small shop or private seller, you must buy many cartridges to sell in your country (or several countries).
For example:
Even if you're buying 100 cartridges and then sell 50 privately to your grey market dealer in Hong Kong who list them for sale on ebay (for the price lower than suggested retail price anywhere in the world) to sell worldwide then you're a cheater, but your samples cannot be identified if you (as a dishonest importer) or your grey market partner decided to remove all serial numbers (or replaced them with fake serial numbers).
Grey market dealer is a rat in the chain who sell worldwide for very low price, but official dealer can't sell worldwide, because he's a dealer ONLY in one region. They can't sell it lower than suggested retail price, they can't sell it lower than the price they paid, because importer sell to dealers expecting retail price policy from the dealers.
Grey market dealers ruin the whole system of distribution.
