I take your point, but I thought that this post was about costs for visitors, as much has been said about eating out and rentals. Most people reading and commenting are not, like you, living on and Argentine income. To live with this level of inflation is a nightmare. Anything imported is, ludicrously expensive, but if you eat and shop like a local and not in the tourist hotspots this can still be a cheap place to visit.
As you know I do not need to pay rent, but I still have all the day to day expenses, my energy bill, for two months is equivalent to a day at home, and while beer is about the same cost, eating out (locally at any rate) is cheaper.
I simply could not live here full time, it would drive me nuts, but I still maintain, that for a visitor, it can still be cheap.