For those that are under the belief that their homeowners policy will cover their trailer, I urge you to pull out your policy and look specifically at the "limitations" section. "Most" homeowners policies have a $1,000 limit on any trailer coverage, and only for specific causes of damage.
In most states, your auto policy covers liability for damage caused by your towed trailer, but not damage or loss to your trailer.
These are generalizations, there are several different types of policies available in every state, and every state has different rules governing their policies. (I recall TX and NC as having the most interesting policies)
When I was a claims agent for a top rated company that covered all states and most foreign countries, we had to get the details of the loss or damage, and then had to pull up the specific policy to confirm the coverages, limitations, and exclusions. All this is available and spelled out in your individual policies.
I have a separate "agreed value" policy for my current trailer, although when I had my basic popup I considered the $1,000 coverage under the homeowners policy to be good enough (and I had to use that $1,000 coverage after a hailstorm).
Dave (AKA John) and Marilyn
04 Dodge Dakota Quad cab 4.7 (primary TV)
08 Subaru Outback 2.5 (alternate TV)