true. a lot of time is wasted on the job site just waiting for people, for pieces to come in, to unload, to measure where they're put etc etc etc before the machinery is actually used to erect, say, a steel column. And that is not counting "human" factors like breakfasts on site and extended lunches off site and early day offs on fridays. Your machinery will actually wear and tear for only a fraction of the rental time.
