Wait until you get there and have to play a place to stay and eat! You won't have to worry about the temptation to buy anything because you'll already be broke.
Seriously though, go check out all the places you can, because the stores are so much better than anything in HK or the US!
You are absolutely right, window shopping is about the only thing I could do if I were to go again (may be next year), if the Yen keeps going up!
I actually had my eyses on a Used Moon in Ishibashi, but was sold when I visited the shop.
I'd love to have a Moon (particaularly especially the Larry G one) and would not mind a Atelier Z, either!
This thread is quickly becoming more and more of a bass porn thread!

Great sound too I would bet?
That is a nice looking bass...IMHO.