Not sure what lesson is but decided to look up real estae in Ginza and Japan. Fell off the chair, if thats what prices are like after years of decline. The property search tool starts at 20mil yen and floor space 30 sqm.
Link. just do search housing Japan. Some examples y18mil for 78 sq 2 bedder walk to Ginza. For anybody thinking Australia is overpriced have a look.
