London is like getting a gun put to your head (figuratively ) when you go to buy just about anything.

Buenos Aires, in comparison, is affordable. Shopping cannot be compared, because comparable products are generally not available due to import restrictions. Food, at $1 = $5,45 is moderate, but a fair sum less than London, and at $8,00 is a very good deal. Taxis? Yes, prices have skyrocketed, but in comparison, the ride from an EZE distance to central London would probably cost 3x as much. I just checked and LGW to central London is a £70 taxi ride. EZE to the city (similar) ranges between US$30 and $40, depending on the periodic rate increases and current exchange rate.