Anywhere else in the world and I would've laughed at the "litre of beer" statement. Unfortunately (or fortunately, depending on who's point of view it is) 1 litres do exist in Japan. Not sure how much they cost, but a 6 pack of 350 mil (or is it 375ml?) Asahi Superdry will set you back around 1,200 yen, which is effectively $11 USD, so basically about $1.80 USD per can. This is a rough estimate. You can buy beer that's cheaper, as you can buy more expensive stuff.

Not sure why you'd want a Big Mac .....