said by jsz0:said by RARPSL 
Your usage is how many miles you drive in the month.
[/BQUOTE :I know it's analogy and all but you can argue it both ways. You're still paying per-gallon of gas to go however many miles in a month you want. Want to go further, you pay more, want to go shorter distances? You pay less.
The auto rental scenario that I mentioned is any example of the usage analogy that I mentioned. You are given a designated number of miles you are allowed to drive before you get hit with overage charges. The speeds you drive do not apply (unless the Rental Company monitors your speeds via GPS or an on-board black box [which some companies have done] so they can add an automatic "speeding" surcharge to your bill). Your gas is the equivalent of your electric bill (neither of which have anything to do with the car analogy).
