Problems with this piece, off the top of my head:
1) 1900 is a bad benchmark to use for discussing socioeconomic trends. If you pick two points in a data set and draw a straight line, it's easy to get any slope you want.
2) Cell phones! Appliances! Very nice, but a whole set of labor-intensive goods and services haven't had the same rapid advances. Think healthcare and college tuition costs, which brings us to...
3) The socio- part of socioeconomic. Stability, upward mobility, and a sense of fairness about distribution matters. Myopically focusing on durable goods is a traditional conservatarian method for telling the proles to shut it.
4) Wealth should be measured by time spent working? Two-income families are way more prevalent now than 30 or 40 years ago.
5) It didn't even touch on the prevalence of debt.
6) Working class guys! With a boat! Oy.