Eh yes and no. The fad of container homes was a quick flash in the pan as it turned out they were actually a terrible size to actually live in; not quite large

Eh yes and no. The fad of container homes was a quick flash in the pan as it turned out they were actually a terrible size to actually live in; not quite large enough to put furniture in and still have walking space. Because factories for rooms are actually specialized for the actual room, it's not cheap once you consider the startup cost of a factory. All the components of a room are increasingly panelized and mass manufactured anyways, making building large portions of buildings similar to building out of Legos or IKEA flatpack, which is good enough for labor reduction.