I don’t think you are looking at long enough track record of spending. I attempted to put numbers like that together, but could not find enough data. Also, I would theorize that spending takes a minimum of four years to make a difference, except maybe on a coach.
That being said, I don’t know that it helps the rosy viewpoint of the future. If investing in infrastructure doesn’t pay dividends, then we are solely dependent upon our ability to find a great coach at a bargain price. What does our history tell us about that? I’ll let the reader do the math as an exercise on that one.
