There are several reason to use a terminal. Mostly for snowbird customers going to and from Florida from New England. Newenglandtoflorida.com website for American Transport has 9 terminals in Florida and 1 terminal in Massachusetts home base.
City in Massachusetts – Worcester
The cities I have in Florida:
West Palm Beach, Port St. Lucie, Fort Lauderdale, Miami, Naples, Ft Myers, Sarasota, Port Charlotte, Tampa and Orlando.
Why are terminals important for snowbirds usually they have two cars. They drop one off at my terminal in Worcester, Mass a week or 2 before they are flying down. The car is shipped down to the terminal that you choose. When you get off the airplane you can take a taxi to the location, have a friend pick you up or I can arrange to have you picked up.
The same can be done coming back.
Transporting vehicles takes time and there are several delays that can happen. Trucks do not leave empty must be filled to make money, truck breaks down, overweight must fix load at weight station, have other stops along the way, traffic on I 95 can be crazy so you can see there is a lot. Remember this is 1500 miles not going right around the corner, so a lot IS involved with this transport.