The payback time is based on a storage unit at $456/month. For a full truck costing $598 it only costs about 40 days of rent and then you have no rent after that. Might be worth it.
(source: 1-800 GOT JUNK, and my own imagination)
In which the author ponders the question, "If you admit that you are a hypocrite, are you really a hypocrite?" He then provides his honest commentary on a number of fascinating topics. He insists, however, that his readers form their own opinions.



Since we don't have a straight line yet the next plot is of the inverse of the fraction of prime numbers. Bingo! We have a straight line. A quick check of wikipedia (Distribution of Prime Numbers. Know your search terms!) reveals that I have just empirically rediscovered the Prime Number Theorem. Typical engineer.
That theorem defines pi(n) as the number of numbers that are prime below n. The fraction of numbers that are prime that I was trying to figure out is pi(n)/n.
They say that past performance does not guarantee future results. That is also true for at least the last three seasons of baseball. I plotted the year's winning percentage vs. the year before and get an even worse correlation than for salaries.