What does my boyfriend mean when he says argentines are generally happier than americans?

well i was talking to my argentine boyfriend about his home country i am pregnant and he said his family has a business down there so we would be more financially stable for now till we come back to america but i said but isnt argenina a developing country? and he told me yes in a way but in argentina they dont dwell on material possesions like americans and they essentially have a better quality of life and i still dont get what he means by it and he said i would be happier in argentina but i still dont get what he means by "argentines are generally happier than americans" can someone help me understand?