Totally agree, these buildings are not made for comfort, just made for profit.
In retrospect it's not much better than living in a cave, a mud brick building or camping with a tent; but at least with these 3 options you can build a fire!!!
My concept of finishing the interior of these building with insulation, heating, proper wiring, insulated plumbing( hot water) and proper ventilation is financially feasible..
Anyone want to try a start up?