A huge part of lower home prices in Japan is that they treat housing as a depreciating asset in their economy. So it's more like buying a car than making an investment.
http://freakonomics.com/2014/02/26/why-are-japanese-homes-di...
http://freakonomics.com/2014/02/26/why-are-japanese-homes-di...
And in Japan, earthquake resistance codes change about every 10-20 years, meaning a 35yo house is measurably worse than a new one.
I definitely considered the age of the building when we picked our new apartment due to these concerns.
There are also good reasons to junk old cars but it would be pretty inefficient if it became a societal taboo to drive a car over five years old or to purchase a used model.