"I'm still waiting for you to explain why they [sunk costs]should affect future decisions."
Let's say that you have a factory that produces straw men.
And you sign a 5-year lease, paid in advance.
But things don't work out in the first year, quite as planned.
But there is still a chance that things could turn around in the second or third year.
Do you think that as the owner, you might give up on your strawman factory a little earlier if you only had a six month lease, as opposed to a five year lease?