Yepper Jim, although I have only been to Japan once, we get annual trips from Tim (often times more than once a year) and Saito has stayed in our home on more than one occasion. Toshinori Ishihara (Yagenji) has as well. Then there are all of the other breeders I have had the pleasure of judging with and or conversing with at functions as well.
Still waiting to get back to Niigata though. Damn kids.....something called college keeps eating up my Japan trip money! LOL
Steve
Edit:
Jim, although I agree with your thought, spending time in other locals (high end dealers such as Infiltration, high end hobbyists like D&G) can be the next best thing to keep the eye "tuned".