All said and done, they sell this way because it works. People bow to pressure. I'm not horrible at sales myself, which is why I quit, and I can say from pretty extensive experience that people will almost always do exactly what you project that you expect of them.
That said, I think most of us on teachat would laugh at all this crap (you want me to pay what for what?!?!?!), but we are not the majority. Not even close. Most people think I'm crazy because I want a special teapot for one type of tea, or because I can drink the same oolong for 8 straight steeps (all the while hollering about how awesome it is that it changes flavor so much), or because I cringe when people hear that I like tea and tell me they LOVE Liptons.
Teavana probably won't go out of business, probably won't have to change, and they are DEFINATELY not about tea. They are about money. And money makes money. It is sad. So forget it, be nice to them (cause then it's easier to be nice to yourself), especially the sales people who just needed a job (though maybe they will someday join us here), and enjoy the beautiful, steamy cup in front of you while adoring your brand new celadon or yixing or testubin (that you didn't buy from them).