Fruit in Japan can be ridiculously expensive.
Last summer in Hawaii, I ate 12 watermelons for less than a hundred dollars in total. In Japan, I have to pay approximately $4.00 for a slice at the supermarket. This is "average."
However, I was SHOCKED by the price of a watermelon I saw in Osaka. Guess how much this watermelon cost? 9,450 yen which is over a hundred dollars!
I am still wondering, "how do they determine a $10.00 watermelon from one that is $100.00?" At the supermarket this summer, the cheapest whole watermelon I've seen is a little over $10.00, but $100.00 is insane.
Watch out for prices when you buy fruit in Japan. Don't get mixed up with the numbers!