That makes me wonder if it's a good time to start up some mountain tourism in Japan. The landscape is magnificient, the culture is unique, and if the prices are falling a bit you could attract a lot more of budget-ish climbing/hiking/trekking/paragliding/younameit traffic both foreign and local. Especially hiking, trekking and trailrunning is quite big.
The only downside being that the Yen is a strong currency, which kills the whole budget idea. The central bank has been trying for a long time to induce inflation, without much success.