We are also the richest state by a lot of measures so higher prices from that higher standard of living should almost be expected
https://dqydj.com/income-by-state/
At every percentile I checked, Californians have higher incomes than New Yorkers.
The differences, however, are pretty minor (a few hundred dollars to $1,500 at most from what I spot checked), whereas in the differences are thousands and tens of thousands of dollars after the 80th percentile. So it seems like the top 20% in CA earn sufficiently more than the top 20% in NY to far outweigh whatever extra 30% to 70% in NY earn.
https://en.wikipedia.org/wiki/State_tax_levels_in_the_United...
if you look at taxes, it depends on what kind of taxes you count, for example North Dakota's severance taxes makes it rank #1 in the nation, but it's from drilling for oil/gas
But if you look at the highest state spending per capita
https://www.kff.org/other/state-indicator/per-capita-state-s...
#1 is DC, so it's the "richest state" even though it's not a real state, with #2 Alaska spending the most per each resident of which there are not much
The conclusion is that California in reality doesn't spend the most on its residents