Use what Big Brother will allow on your vehicle ($0.585/mile) and watch your cost skyrocket. Using this calc, the "great deal" on the trailer I bought last weekend turns in to an $835 expenditure.

It's all relative, this was the trailer I wanted, couldn't find one like it close to home and the wife and the doggy enjoyed the car ride.

We're off to buy a "$408.57" set of used beach wheels this weekend, and the girls are looking forward to another road trip.