Your no cheating space filler is hilarious. I'm at an advantage because I read the FIRE blogger manifesto by Our Next Life yesterday, but I don't remember what study was mentioned or the exact cut offs. With that disclaimer, I'd say lower to solid middle class are those with household incomes between $30-80k-ish. Upper middle, into the low six figures. Upper class above say $160k?
When someone says they make "in the low six-figures," is it commonly accepted that means low $100K range as you are indicating here (ie. $100K-$159K)? Numerically, I consider "low six-figures" to be $100K - $350Kish?
So when someone says they make "mid-six figures" do you take that to mean around $150K or around $500K?
Anyway...
My thoughts on defining middle class are similar to MoseyingAlong and mtbbrown in the sense that I believe people that are "genuinely" middle class "don't live in a gated community, have a nanny, fly first-class. They do eat at casual restaurants like Chili's, attend a local school, either private or public, drive themselves and generally work a regular job." I'm not sure what the specific salary bands would be, but do believe that location would matter.
I disagree with "Someone can be high income and middle class (such as the couple that started all this reflection). Someone else can be using debt to live upper class."
This goes back to where I said "genuinely" middle class.
If someone makes $500K, but
chooses to live a "middle class lifestyle," I don't consider them middle class... Sure they may act that way, but deep inside they are telling themselves, "I could own a McMansion or drive a BMW, but I don't" for whatever reason they have. A person "genuinely" part of the middle class can't say that.
If someone
HAS to go into debt to achieve any class level, then they "genuinely" aren't part of that class level.
That's why I take issue with the now infamous couple that everyone is talking about.
If it's true that they have incomes greater than $300K a year, I believe that gives them the ability to live at least an Upper-Middle Class life. To place them in the same category as a family with a household income of $100K or less does not seem appropriate - even if they
choose to live the same way.