The thing is that I've been obsessed for the past bunch of years with how Argentina and the surrounding region would be different had Argentina fulfilled its economic potential (the best way, in my opinion, being that the British take over the country). I've even made a website about it, and now, for the last little while, I've made major revisions to that type of what-if history. And holiday destinations are a part of that obsession. If the British had been successful in their invasions of Buenos Aires in 1806-07 and had stayed in the region long-term, Argentina would have become a country every bit as modern as Canada or Australia or the United States. It would have developed a Canada-like mixture of English and Spanish. Being a temperate-zone country (suitable for European-type crops) with a small indigenous population, Argentina has been classified as a settler country just like its fellow New World temperate lands - the US, Canada, Australia, New Zealand. As such, Argentina as a British colony would have developed much more like Canada, Australia, etc. than India, much of British Africa, etc.
The way I think of all this in terms of where people from the Rio de la Plata would go for holiday destinations, if you're comparing that part of South America with Western Europe, Buenos Aires/Montevideo is like London/Paris; Mar del Plata and surrounding areas are like the coasts of the British Isles, northern France, Belgium, Germany, etc.; Punta del Este and surrounding areas are like the Cote d'Azur or Biarritz or other coastal areas in southern France; the coast of Rio Grande do Sul (and the southern Santa Catarina coast) in Brazil is like the Costa Brava or Costa Daurada in northeastern Spain; and the coast of Santa Catarina in Brazil (from Floripa northwards) is like the Costa Blanca or Costa del Sol in southeastern Spain (and the Algarve in Portugal).
If you compare that part of South America with the east coast of Australia, Buenos Aires/Montevideo is like Melbourne; Mar del Plata and surrounding areas are like the coasts of Victoria and Tasmania; Punta del Este and surrounding areas are like the coast of southern New South Wales; the coast of Rio Grande do Sul (and the southern Santa Catarina coast) in Brazil is like the coast of northern/central New South Wales (inc. Sydney); and the rest of the Santa Catarina coast in Brazil is like the coast of southern Queensland (inc. Gold Coast/Surfers Paradise). The rest of the Brazilian coast is like the rest of the Queensland coast.
If you compare that part of South America with the east coast of North America, Buenos Aires/Montevideo is like Boston/New York/Philadelphia/Baltimore/Washington DC; Mar del Plata and surrounding areas are like the coast of New England; Punta del Este and surrounding areas are like Long Island, the Jersey Shore, and the coasts of the Delmarva Peninsula; the coast of Rio Grande do Sul (and the southern Santa Catarina coast) in Brazil is like the coast from Virginia Beach down to northern Florida; and the rest of the Santa Catarina coast in Brazil is like central and southern Florida. The rest of the Brazilian coast is like the Caribbean or coastal Mexico.
All these analogies are not to say that conditions are objectively the same in any of these pairs necessarily - for example, New York is clearly different from Buenos Aires (especially in the winter), and the Cote d'Azur is different from Punta del Este. But, they could tell you a lot about what people in, say, Buenos Aires could prefer in terms of going on holiday somewhere (or retiring) if Argentina were a developed country. What determines where Argentines in such a world would go to would be governed (besides by the economics of all of this) by what temperature they're used to (say, highs of 15C in the winter - and coastal Brazil is clearly warmer), rather than any objective criteria (e.g. it's got to be a high of 0C or below to be cold enough to go to warmer climes for the winter). But since Argentina is a Third World country as it is, that automatically changes what Argentines' preferences are, versus those of Britons, southern Australians, or northern Americans, into what the Argentines actually do in terms of going on holiday somewhere. Plus, the travel culture of real-life Argentina is different, the way I hear, than in northern Europe, the US, Australia, or the hypothetical Argentina.