[daddosi]

What happens after 10 years? Or is 10% per year some investment standard?

This ferengi formula goes way over my head. Here we just have government sponsored trains that take people places and costs what it costs. It all runs on wind. After doing the very bussy part of the trip you get to see giant trains with 1 or 2 passengers at 30 min interval. I think cheap parking for cleaning and maintanace alone makes it worth rolling them to barely habited areas.