My coverage is for agreed value (more than what i paid for it) and is only $136 a year through state farm. I have my home and car insurance through them as well.
I recently switched from the gowerie (US Sailing) plan because they wouldn't increase my coverage. With what has happened with the mast in the N20 class, I felt that I needed to get more coverage so that if something DID happen, my boat wouldn't be totaled with me sitting with a check that wouldn't even come CLOSE to buying a replacement 20. So now I'm happy with State farm.