Yes, so I am saying that a median income today could sustain a 6 person household if you were allowed to fix your comfort level to the level of the 60s. That is 3 more than a single median income supported in the 60s.

I am definitely not trying to paint a rose-glass view of the past. I am saying that we do have more prosperity today than we had 60 years ago.

I am also saying that we pay of a lot of time to have things that provide diminishing returns. (Ie. would you rather have flush toilets or access to facebook - style of reasoning). Maybe the famous 80% value for 20% cost is also inflating?