Comparing to select grade is fair since they do not come with knots or other defects.2) They require no glue or nails to assemble and require much less time (making them cheaper)3) My bees use 25-30% less stores in the winter (less money I spend if I need to feed)4) They are not your standard styrofoam coolers, they are much denser and stronger, I would venture as stong as wood hive bodies.