sailboat enthusiasts, a small minority of boaters, will purchase elsewhere. Waterfront land in balmy subtropical climates is beautiful, in high demand, and expensive. It's not going to be allowed to "disappear."
Anyone notice what's happening up north these winters? Growing weather extremes is going to mean plenty years with terrible winters in northern and inland states.
What's going to happen on much to almost all of the Florida coast, as sea levels rise, storms intensify (OR hurricanes mostly disappear--another global warming possibility) and flood insurance disappears, is that many people currently living there aren't going be able to afford to continue. That is terrible. They will sell to wealthy people and corporations and move inland.
If conservatives control governments during this critical transition, so that it's not controlled for the benefit of the people, coastal lands, with their lovely views, beaches and breezes, will become almost exclusively the purview of the wealthy, who will build sea walls and raise ground elevations. We may be among the losers. We don't know if other owners of our waterfront snowbird MH cooperative will choose to invest in elevation or sell to a developer.
Just grabbed these three off the top of a seawall Florida google:
Fort Lauderdale may require higher sea walls (no kidding! dozens of cities "may" require)
http://www.sun-sentinel.com/local/broward/fort-lauderdale/fl-lauderdale-sea-walls-20160415-story.html
Panels of fake mangroves may transform Floridas seawalls
(not as horrible as it sounds--seawalls themselves would be an ecosystem)
http://www.sun-sentinel.com/local/broward/fl-fake-mangroves-20161223-story.html
Seawalls are vital to your waterfront property. To maintain your property value, (yada yada, one of hundreds or perhaps thousands of these already -- the seawall industry is booming)
http://www.southeastmarineconstruction.com/seawalls-0
http://www.sun-sentinel.com/local/broward/fort-lauderdale/fl-lauderdale-sea-walls-20160415-story.html