It's maybe an unpopular opinion but it is the truth - Robert Shiller has gathered a lot of data that confirms it (prices go along with inflation if you don't co

It's maybe an unpopular opinion but it is the truth - Robert Shiller has gathered a lot of data that confirms it (prices go along with inflation if you don't compensate for maintenance costs - meaning that the actual value depreciates over time). He writes about it extensively in Irrational Exuberance.