Japan just added more money to its marketplace to the tune of US$800 plus Billions! Trying to acheve that sought after "inflation" of miser 2 % !To the OP, prices maybe not are like 2007. Surely not. But you must also know that the dollar blue went up with inflation. So if you have dollars, it still is very cheap, a lot cheaper than London, Tokio and NY.
You are comparing Apple to Oranges, N.Y, Tokyo, London, Paris etc sits amongst the very cosmopolitan civilised cities in the world.
Argentina's Buenos Aires still has many,many years to achieve the standard to even be mentioning to comparing with those cities you have mentioned. But have you known that in Tokyo if the tourists looks for and found very easily, are those wetting holes Bars at US$5.00 a shot even the coktails. Also you can get a one coin hot lunches at US$5.00 per sets..