My thoughts Paul.....
In al my years of having particular cars of stated value I have never ever had any special insurance with any of the collectible car insurance companies.
As others have mentioned....the key is stated value which probably requires an appraisal by a licensed apprasier which is good to have anyhow no matter what insurance you carry.
One thing about dealing with a regular insurance company is if you have multiple vehicles under one policy you save money and if you combine it with say your house and umbrella insurance it works out pretty good. Plus with a regular insurance company and a stated value you are not limited to where and when you drive your collectible car. I don't drive my turbo-t to car shows probably next to ever but come nice weather I drive it to work....I don;t want to be llimited.
Granted this may not be everyones choice but for a typical 20-25 grand value car that you want to drive whenever this is a good option. Its something you may want to explore with your current insurance company first since they insure your other vehicles.
denniskirban@yahoo.com
Years ago I clobbered a deer with my turbo-T limited.....my wife got hit in the Syclone......neither case was an issue.