Uvita is a beautifully place. Like every place it has its trade offs and depends on what type of person you are and what are you looking for.
Between El Salvador and Costa Rica I’ll choose CR every time.
Argentina is a great place. Far away from all the Bull Shit, energy and food independent, great culture, big territory, not to many people.
Third world advantages, with a first world city (BA). Beautiful landscapes, lots of farmers.
Farm Land is cheap AF (for now) having your own ranch is not that crazy.
But again, I don’t know you and what are you looking for.
But for me Argentina is the place to live. and it’s a great option for expats too.