it is not to help you, it is out of competition.

来源: 于 2011-11-02 16:27:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

why the price of computers are lower and lower? because of competition. 

You don't pay more for labor either. 

I don't know how you calculated. Even for 20K income, you would have federal tax to pay.