As an aside, I wonder how many people in the top 20% consider themselves "middle class"? It appears that the upper quintile starts at a household income of 88K.I used to have a co-worker that grew up as "poor". He used to claim all he really wanted was to be upper middle-class. Once, having recently seen a tax table demographic on Minnesota resident revenues, I told him he was above the 95% income level of all Minnesotans. He wasn't happy to hear that.For him, joining the army was the mode of his mobility. But he was also an intelligent, disciplined, and hard-working guy.