The housing is better. Square footage per person for example has approximately doubled.

Also, in Chart 1 on page 6, "expenditure share for non-necessities" in the US goes from about 32.5% in 1950 to fully 50% in 2002-2003.

It would be nice if you told us the page from which you got your, "in 1950, food, transport, and housing consumed 70.3% of median working household expenditure." Searching for your text verbatim fails, which is not particularly surprising because PDFs cannot be searched reliably.

Also because 1950 is considered by some to be a particularly prosperous time in the US, some might accused you of cherry picking. For example, in 1918-1919, the "expenditure share for non-necessities" was about 22%.