Believe it or nor but it is true. The same Roomba vacuum cleaner robot that costs just about $150 in the United States and more than $400 in Japan. Why are Roombas so expensive in Japan? The query that would surely haunt the people as well as the dealers in Japan! On one side we are heading towards globalization or global village, on the other end such blots are hampering the cause in an immense way. Whatever may be the reason; this is another example of the dual yardstick for similar measurements.