People seem to think that if they have that cargo van tricked out with every known accessory, they're going to insure the van AND THE CONTENTS. Well, they're not.
Please go back to Page 1 of this thread and read ArtW's post. He's giving you good advice.
If you have a super-stretch limousine, and you have a hot tub in the back that cost twice the price of the limo, and you wreck the vehicle, the ins. co. will only cover the limo, not the hot tub.
If you have a van with a flush toilet, a sauna, a heated, antique bed, a big-screen TV and every electronic device known to man, NONE OF IT WILL BE COVERED. And if you do have it rerated from a van to an RV, the rates will probably be considerably higher than you expected.
Regular RV insurance tends to be low because of the ODDS. Insurance is all about odds. Most regular RVs aren't usually used much -- that's what the ins. co. is basing the rates on. Some people drive their regular cars 200 miles a day to work and back, and their ins. co. is going to tweak the rates to reflect that number.
If you go to another ins. co. office and quiz them about coverage, DO NOT give them your name, DO NOT give them your address, DO NOT give them your current ins. co. and number, and DO NOT let them see your license plate (any of them). All insurance info is put into a main database, regardless of company. And all of the companies have access to that information. If you tell one, you've told all of them. And I would imagine that that database is consulted every time your policy is renewed; they find the questions you asked, and they will either a) raise your rates, or b) cancel your policy.
And one question that no one seems to think of asking: "If I get full coverage (liability + comprehensive + collision), how much would I get if the vehicle was totaled?" When you get home insurance, it tells you what your limit is right on the policy. Now, pull out your auto policy and see what it says. Many times, what they will pay is less than you've paid in premiums. Some people will pay for comp/collision on a old, old vehicle, and if it gets totalled, they're shocked at the few hundred dollars that they get for it.
Another little item that many people don't think about: An ins. co. can refuse to pay a claim if they can prove that you gave them false information.
Remember: Insurance Companies are in the Premium-Collecting business, NOT the Claim-Paying business.