Insurance cost wasn’t a major issue for us once the house was upgraded to pass the 4 points wind tests. Just to put it out there, my house was right at $950k, sat 150 yards or so off the beach, actually had water on 3 sides of it, was built at a height of 10-12 feet maybe. After 5 years of owning this one, I paid under $2500 for flood and maybe $3k for wind and homeowners. I pay the total of those two at home for homeowners and several add ons because my county has a higher risk factor than Sanibel did for some stupid reason. It’s all going to rebalance, but the only time insurance scares us off of anything was a canal house that was going to be $20k for flood and no one could explain why. House 3 doors down had a grandfathered policy for $400.
With flood now you want to find a property with a policy you can assume otherwise it may not be worth it. Flood reimbursement is capped, so it’s not great insurance anyways.