I see this as almost benign, except that Chavez is a threat to his neighbors. To me, this is a cargo cult mentality. The S-300s will be parade ground props, for the most part.
Unless those systems are kept in AirCon storage they tend to rot in the tropics after 24 to 36 months. Likewise with almost all Russian made military equipment.
One of his "neighbors" isn't a country: it's the Panama Canal.
Strategic threat to the U.S.