[zemvpferreira]

100 to 200 years ago labour was so cheap to the upper class as to cost zero. A truly upper class family could have dozens of full-time servants. An upper-middle-class family could have 3 or 4. Even 50 years ago it was common for a middle-class household family in Lisbon to have a live-in maid for pennies. Try having even one full-time maid on an engineer's salary today. Or just supporting a family of 4 on a single salary, for the matter.

Old middle-class and above buildings were beautifully built because expert craftspeople and old-growth materials were practically free. They used them all up and we're left with more efficient (but uglier) ways of building. Which is a good thing, means we're not exploiting workers or cutting down forests and mountains quite at the same rate any more. But until we achieve another technological revolution in manufacturing and are able to spec custom parts at the same price as mass-produced ones, we won't be building things as prettily as a century ago.