Hi Ed, and welcome back.
I personally think that prices are outrageous. I don't sell, so I only see the market from a buyer POV, and everything seems too high to me. If I sold, I'd probably be happy. I mean, a lot of posters are x10 what I paid for them 10 years ago. I try to bid at HA and fail 90% of the time.
Regarding Japanese posters, I am a fan. If you want to sell directly, contact me. You can see what I have on my website.
T.