You can go nuts thinking about transportation costs.
Low-cost airlines can put a seat in the air for 10 cents a mile or less, assuming reasonable fuel prices. That's pretty cheap when you consider that AAA estimates that the cost of driving a car is five times that, or more.
So we were a little shocked to read in the Baltimore Sun recently that the state of Maryland is considering a toll of 35 cents per mile for a new highway under construction in the northern suburbs of Washington.
The road is supposed to be about 19 miles long, which means that driving from end to end would cost $6 and change.
For that amount, if you pick your spot, you can go about 100 miles on the Pennsylvania Turnpike, with as much baggage as your car will carry.
Of course, your mileage may vary.