Thank You, abcandjrc.
Everyone should read the previous definitions, if they have any doubt.
One CAN have a Policy that, in the event of a total loss, provides more than the "market value" of other similar boats.
The premium might be larger; but if, for example, your late model Ranger Tug is stolen and wrecked, you could get enough cash back for one in equal condition.
Homeowners' policies have had "Replacement Value," as opposed to Actual Cash Value, for a long, long time.
Similar concept: If your house burned down (unlike a boat, a thief can't steal it and motor away), you'd want a new one built, not just the used value of your old house.
I have recently seen commercials for auto insurance, where they offer you a new car, if your used one is wrecked.
You get what you pay for, and you do need to read the Policy, as dull as that may be.
I vote for Agreed Value in boat policies, unless your boat is very old and worthless.
More important, have high-value Liability limits, and possibly an Umbrella Policy above the boat liability limits.
What you lose when your boat is wrecked, in the boat's value, is but a drop in the bucket of what you can lose if you are the responsible party, and people are maimed or drowned, and your boat hits another, larger boat.
Charles (former insurance advisor, can you tell?)