Sometime in the new year, I will be traveling LAX-SIN for work. On the way back, I have the option to retrace my outbound path or kick in a little extra money and just keep heading west on a USA carrier/codeshare.

For those that have done it, is there enough justification to shell out $400 essentially for RTW bragging rights?

If not, I will probably stop in Tokyo for a weekend, take in the sights, and make my US-bound semi-otaku friends happy.