Sears homes were precut I believe. Your crew was probably drunk anyhow no matter what but that gives them a bit of a helping hand with one less precision task to be done. I think theres a serious survivorship bias among them today. Most of the ones you would consider buying have been well maintained and upkept. The ones we rented from slumlord landlords in college on the other hand. Some of the floors were so warped it looked like the tide. Most bathrooms full of mold from 7 students showering daily with no shower vent. Most exterior trim wood rotting from lack of regular painting. Most windows single pane with poor seals. Most work would happen when something catastrophic demanded it from a code habitability issue, like a roof leak destroying the ceiling, that would only be addressed after the unit became legally uninhabitable.