Think of tea and teapots from the business point of view which is quite similar to real estate. Buyer want a cheap bargain but all other parties want to maximize profits. The problem is there is no regulatory bodies to do quality control, standards and no by laws. And there is no reference or tangible clue on the product unless you are long into the hobby in the right direction and learned what is good or not. So you can imagine the horrors especially it is a consumable items.
Don't waste your time coming to Asia for tea and teapot hunting. Just come for holiday. The good stuff are long gone and the newer tea enthusiast is as lost as to what is right or wrong. Even tea vendors are at the mercy of suppliers and producer.
It is really a sad situation as compared to those days in 80/90s. No more cheap and good stuff, unless we are willing to pay for it, and still we might end up with expensive inferior stuff.