Of course you can't really equate tea with wine, in price or volume of consumption...if we'd drink as much wine as tea we'd all be terrible alcoholics on this forum. But it can serve as an analogy...you can get a cheap wine that is still good, the same is true for tea.
The point I was trying to make earlier was in reference to someone saying "tea is becoming too expensive." I think it can seem that way if you feel you need to drink only the top quality stuff. The Lung Jing samples on postcardteas.com, which are made by a real "tea master", are £ 22 for 20 grams. I'm sure it's good stuff, but that's just not something that a lot of people are going to be able to afford to drink on a daily basis. If you start to believe that all Lung Jing that is sold at a considerably lower price , or all the Yancha that is cheaper than the stuff sold at mandarins tearoom is "fake" or not worth drinking, you're making things much more problematic than is necessary.