The tyranny of low expectations.
There was a time when making big spaces disruptively cheap was an expectation. I had to look this one up in a book and DDG only found this one reference online (I know there're more).
https://supermegalopolis.tumblr.com/...-1-section-and
J. P. Jungmann's inflatable house with inflatable furniture. ....and an inflatable pool.