Several factors can make your transport more expensive than you expect.
Popularity of the route is one key factor. If you live somewhere that does not see a lot of transport traffic the price will be higher.
If you live far off of an Interstate it’s going to be expensive, no way around it. Even if the interstate you live off of is a popular route it will be expensive.
Why is the question on your mind? A few items to consider, the first being the cost to run a transport. A large auto transport cost roughly $1 per mile for fuel before you consider insurance, licensing and labor costs. If you live 50 miles of a major interstate in rural area it will cost the transporter $100 in fuel alone. They have to drive from the interstate to our location and then back to the interstate. That is 100 miles to drop off a single vehicle. Then there is about 4 hours worth of driving time.
If the interstate you live 50 miles from is a well travelled, popular transport route the equation is pretty simple as noted previously. If you live off of a less popular route its gets even more expensive. First you have the situation previously noted, and then you have to factor in more money and time due to the fewer carriers who travel that route.
If the route is infrequently travelled in takes more time to find a carrier or it takes more money to attract a carrier. Carriers make money by grouping individual cars together so they can travel as few miles as possible while delivering the most cars.
Simple put the more remote and less well traveled your transport route the more expensive your transport costs.