DougI"m sure that you have well figured out that the H.A.M.B. promotes their own.Not that those folks wont do a good job but big time pricey!!!
I have had 5 cars moved in the past year.I shop by price ONLY because all of the cars were in need of restoration.
Essentially the booking service tosses out your needs to multiple shipping brokers.These brokers put your needs up on a computor list and the people who actually move the vehicles will respond.
The dirt cheap prices quoted never happen.Those prices are based upon redicious price per mile figures that nobody will do.Those cheapo broker guys lock you into a deposit contract and dont do anything except sit on your deposit money for 60-90 days.
I usually go for somewhere in the middle pricing.It still takes a week or so to get an actual booking.I got a call on Thanksgiving as I was sitting down to turkey from a confirmed mover who wanted an additional $400.00 on the spot to move the last pair of cars.Needless to say he got blown off and the broker got a earfull.
There just guys trying to make a buck.DAS auto shippers is actually a real service provider.Not the cheapest by any means but I have had 2 pleasent experiences with them.
Depends on the car and the care of the shipping that you need.
Hope this helps,Oldmics