There is a stereotype of Japan being an expensive country (and, on the other side, Cuba being cheap). It turns out this may not be true. Food is not expensive at all, yet delicious. Accommodation prices are similar to those in other countries I've visited. The most expensive is the transportation. I definitely recommend purchasing JR Pass which proves great value - trains are reliable, fast and comfortable. For more detailed comparison of the expenses see the table below.
* Na Kubi se večinoma plačuje za sobo. Pri potovanju v paru ali manjši skupini je torej možno privarčevati. / In Cuba you usually pay per room. Travelling in a pair or a small group may save you some money (per person).