The Chinese tea culture truly is wonderful. It offers a great variety of teas that are produced/made differently. Visiting a Chinese tea shop may provide one with some of the knowledge you need. Prices vary depending on factors such as how old the tea is, what part of China it's from or how the tea is grown/produced. The black tea, which some locals slip to me when I am asking for red tea, is delightful; however, I prefer drinking the red one. With fruits (or without them) tea is better than any other drink that I know.

Indeed!

What the Chinese call 'black tea' is spoken in Chinese as 'hong cha'. But 'hong' means red!
I've also drunk red tea in China. It tastes similar to black tea here.
Green tea is much more popular than black or red tea in China.
Here in Inner Mongolia there is a dark tea available in brick form. It's very cheap and when you visit a restaurant here, a teapot is put on your table, and the tea is free of charge. This 'Mengu cha' tastes a bit like black/red tea, but I think it's inferior to black tea, my preferred tea.