I like to walk to explore my city, and last summer I walked past this house (Google Street View warning). I looked at the large home with its long lake frontage and a fountain built in the most desirable part of town and asked myself "I wonder if they worry about money." Turns out they probably do.
One thing the article didn't touch on was people renting indefinitely. I have friends who essentially intend to rent forever because they have no budget buffer to save up for a down payment, and even if they could, the cities are too expensive to buy in. So each month their money goes to the property owner, and when it comes time to move, they'll have zero equity. I think in 30 years a lot of my peers will find themselves with little retirement and little equity in anything. It'll be a problem.
I've been living well below my means for some time. Articles like this help me feel like I'm doing the right thing.