Earlier quoted context omitted.
I think that the point is that it is the new status-symbol. In my experience (not Silicon Valley), status symbols in the form of material possessions have taken a back seat to status symbols in the form of fitness and "experiential materialism" (frequent travelling, exotic and varied experiences).
I don't disagree with the thrust of what you are saying, and I am particularly amused that in the age of almost infinite variation deliverable through the internet there is a kind of odd counter-signalling effect to avoiding that (I also like travel and have been doing it constantly for more than a year, though, so what do I know). Describing physical fitness as "the new status-symbol" seems pretty bizarre to me, tho…
A ridiculous recent example is the Trulia co-founder rowing to Hawaii with his wife for the cause of...
wait for it....
the fight against sugar.