It is not true at all of what you say.
For people have not travel to China to see their "penjing" exhibition or not to visit their private collection, hardly can see the high quality penjing.
Most of people just have seen penjing from the old book and not many good penjing are exposed to the world because they are not communicating so much outside the world especially on the internet.
Chinese penjing has developped and improved amazingly in the last 5 years and in certain characteristic extend, they have the same sense of technical dicipline and artistry as what we do in "bonsai". The quality fact of Chinese penjing now is much far beyond of most of the outside world have ever known.
I am now writing my third book " The Five Schoolars of Chinese Penjing" to give better understanding of Chinese penjing because not much of such information available in English.
Please also read my article :