[GoodFourBusiness]: Regional Role Model for Business
The innovations don't just come from the coasts.
Since 1988 [Iowa] state facilities have invested over $51 million in improvements, resulting in annual savings of about $100 million.
I'm not sure how to calculate the ROI, since that $51m was invested over 15 or so years. But if the quote is at all accurate, that's a pretty handsome rate of return.