but while we don't fit the profile you are suggesting - I do remember those microwaveable burgers from Uni 30+ years ago - mmmm yummy
That's my recollection -that kind of stuff is for college kids and young professionals. I don't eat ramen at this point, but I remember it tasting good! When I was in college, it was about $8 for a dollar at the grocery store (this was mid 1990s) and when the meal card dollars got thin (for the college dining hall), it was a good way to stretch the card to the end of the semester.
As far as wealthy kitchens go, I'm not sure which is a better measure of wealth - number of kitchens, or number of toilets. Probably the latter as you can get a whole lot of toilets in a pretty mundane house. I've got three in a fairly small house (which is nice when two people want to line up the Norden sight at the same time).
Most of our friends have two kitchens (We have one - we are poor compared to them - we use it - it's a thing of mine that if you spend money on something, you must use it or you're a poser. Not my rule for other people, it's just a personal thing). Some have three and an outdoor (three fully functional with water, fridge, cooking facilities, etc). How do you easily get four total? Well, if you build one outside, you have one main kitchen in the house, one in the basement near the theater room for food prep and one usually in a section of the house that's potentially the inlaw area down the road - a living room, bathroom, kitchen and small dining room area with separate access to the walk/drive with no steps, but most of these are pretty shrewdly designed now so that they don't look like a separate walled off area unless you close them off - they just look like connected rooms).
I don't know anyone with an inlaw suite that has its own theater room and separate basement kitchen, though - that'd be flexing.
here's my chuckle - most of these friends have mortgages (we're in our mid 40s). We would refer to this as posing, also. Not to have a mortgage, but to be able to not have one and not be able to control yourself ("i'd rather have a mortgage than have a house only with two kitchens"). The high dollar kitchens here generally have all kinds of accessories to make sure you don't actually prep food on counters, etc (you have to pull out a hidden prep board, etc, to prevent there being any dirt at all). I find this humorous. Often seen in combination with a spouse who is too busy to take care of her own kids, but doesn't work, and too busy to clean the house (so someone else does it).