It is not necessary to go overseas or head dramatically south of the border to have a great vacation. The east coast has some fine spots, particularly in the Carolinas. Take for instance Outer Banks rentals that are currently available. Getting filled of course, but many places still have some dates, if not all dates for newer ones.
The risk is less, too, just a case of a few hours drive can get you there from many parts of the continental US.
Add to this the fact that the summer season there is quite long, and it makes for something to give serious thought to, as well as for fall and spring getaways.