Hey Nero, browsers can auto detect based on IP what region you're on and display the proper page. How annoying would it be to go on google and get directed to Japan's google page? Then search how to set the language, only to have it revert after you've cleared your cookies?

The point is this type of service should be transparent to the customer it shouldn't require any action on the customer's part. You obviously don't have a problem with it, but to others including myself its poor quality.