I concur as far as possible. It has been my experience over many years that both systems really cost the same. Some years prefab won over stick-built, but in the end....
What's new, perhaps in the last 15 years, is that now Inuit communities want the economic spinoff and the capacity building. They want the stick-built. I can tell you that in Nunavut they have crossed out prefabrication on that basis, because they want the unit to be built locally by their manpower. They have gone with manpower training.
Sometimes, of course, it's not feasible—it depends on how many units you have to build—but I can tell you that this is a strong trend. They want to build them themselves to get the spinoffs and to learn how to build and continue with it.