Afaik, if it's for an agreed value policy ( I have one) then as long as you're happy to pay the premium, the value can be whatever you like within reason. Obviously if you start insuring for hundreds of thousands, eyebrows will be raised, but if you wanted to put the top end of a reasonable amount, you pays your money & takes your choice. I have always insured my boats for the full new replacement costs, the insurance company is aware of this & I pay a suitable premium. I have had a substantial claim in the past & it was paid out eventually. I had problems with the claims management company, but that was down to them being lazy & sloppy. The insurers have now dropped the claims managers & handle things differently. I use Mercia Marine.
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: See rule#5