Authentic ones don't cost thousands of dollars. Hong Ying No.9 is the name of tea variety. There are dozens of yuan a catty of varieties to sell, the difference is only good or not. Just like grass carp, the same grass carp is called grass carp no matter where it is raised, but its taste is good, which is related to its growing environment and chef's skills. If it is authentic, as far as I know, Yingde Hong Ying No.9 was made by Guangdong Tea Branch, and their Hongyan Hong Ying No.9 should be the most authentic.