> I would rather pay 15% more on goods and 30% less on rent.
Exactly. Housing and the housing market in Japan is an interesting beast. Based on my limited understanding as someone who has sort-of briefly looked at buying a home in Japan, houses are not really financial investments. For example, compare house prices in Japan (including the land) with a house in Australia.
Indeed, Japanese houses are designed to be disposable. Likely a result of them being built historically out of wood and paper and the abundance of wood.