I was only sort of joking about the race to $10,000,000. When Arebelspy put up his poll on net worth, I suggested segmenting the over $1M range. That idea was not implemented because no Mustachian would aspire to such a lofty net worth. My guess is that there are a fair number of readers and contributors well over the $1M mark.
I can think of several people on this forum that have or had really good financial engines working for them for many years and are probably well on their way to eight figures. From reading posts over the last several years, most of the high net worth folks appear to be "Millionaire Next Door" types, people that would be attracted to this forum. In Bigote's case, a job in the financial world in Manhattan was key to his success. Driving that 17 year old car (to be fair, he did live in NYC), just incrementally increased his already high savings rate.