Expat life in US, Mexico and who knows what follows...

My family and I had to leave my country in the 1970´s due to the political turmoil going on in Chile at that time, I was only 13 at the time.
We moved to Mexico, for a short period and went to California afterwards to settle in as illegal immigrants, until a few years later we became residents and eventually nationalized citizens.  The cultural clash from those years still affects my life, my first 2 years in the states were hell, most of my school mates had never heard of Chile before, language was a problem, no one would know how to play chess with me, which was my passion and still is. Little by little I was losing my identity, and years went by, always with the thought in my mind of going back to the homeland.
When I turned 33, married , with two kids, my mexican wife and I decided to move to México and leave behind a 15 year career in the airline industry, a good house and other properties, the time had come to recuperate my identity. Since then, I have lived in many parts of this vast and hospitalary country, I believe today that leaving the States was one of the best decissions I have made in my life. My kids assimilated the Mexican culture because they came here in the early stages of their lives and I somehow recovered part of my identity in this country.
I go back to Chile every other year, and maybe some day I will go back to live.
Living in Mexico has been great, my second wife and I live in Puerto Vallarta and one of my kids is studying in Buenos Aires and the other lives by herself here in town.
Nevertheless, one thing I don´t fully understand, is the fact that many expats (most from the U.S. but also from Canada and Europe) living here either full or part time, do not even try to assimilate the Mexican culture, they don´t bother to learn Spanish, they expect things to run exactly the way they did back in their homeland, expect the locals to speak english, etc. Many businesses in town are owned by foreigners, their signs or menus are in english only, many will not make the effort of speaking a word of spanish, and I´m talking long term residents.
The same situation I had observed in San Miguel de Allende when I lived there, and that was one reason we moved out. Puerto Vallarta has suffered, in the last few years, a real estate boom that has been increasing the cost of living tremendously. Properties are sold in USD, as rentals and even some boutiques have their prices posted in USD.
To summarize, Puerto Vallarta is no longer a real Mexican town, I even get approached by time share sellers in english! and I don´t look exactly like an anglo turista.
Time has come for us to make another move, which is becoming cyclical in my life.
We will visit our son in Buenos Aires in March, and stay for a few months, who knows, maybe fate is taking me back to my homeland one step at a time...
Saludos to all expats in the world!