I don't want to teach ever again simply because of the mental strain from day to day, having to be the 'YEAH! GENKI GAIJIN!!!!' even when you're not.
After my experience I find that I appreciate doing even mundane things now. But yes, I agree with R sanyon it was an awesome experience... but just once in a lfetime is enough.
Just to follow on from the original post, I also find that I have this 'romantic' feeling about Japan now, and it's not something that I want to spoil by getting into the daily grind there again. I mean, no one wants to be stuck up against a drunk sweaty salaryman in high summer on the 10:30pm train with nowhere to get fresh air but *straight up*... its things like that that make me think the move back home was worth it.
I wish I could meet up with some other ex-gaijins and talk about things, but then again, it's all very personal and I think mostly people would want to keep their 'J-romance' to themselves. I've always got my Japanese wife here, and I guess I'm lucky in that she works for the local Japanese newspaper here in Perth. She gets to meet all the local permanent resident Japanese and I get to talk about Japan to them... but you know what? The local Japanese here all think AU is *the* place to live. 'WHY do you want to go back to Japan???' they all ask repeatedly. To them it's clear cut. Stay out of Japan. But for us foreigners, it's alot different.
The best thing would be to spend 6 months at home, 6 months in Japan....