Did you even bother to read the link I posted? I'm well aware of that article. And Buffet's 17.4% is below the "super-rich" average. My link even points to this statistical outlier. Buffet makes reference that he is the lowest in his office, and others range from 33-41%. I'm going to bet that there is more than one person in his office that is regarded as being "rich" and they apparently are paying 33% or more.
83% of the country's households earn less than $100k. Presuming married filing jointly, that's max 17.25% effective tax rate. Filing single, it's 21.68%. And that's before any additional deductions, credits, exemptions, etc. That's just the standard 10-15-25-28 tax brackets. So when qworster said:
the uber rich only pay 15% of their income in taxes, while the rest of us pay 35-40%!
apparently he clearly wasn't referring to 83% of the country when he mentions "the rest of us".