Except what’s stupid is thinking the marginal billions of dollars they may save by not paying CA taxes are worth anything.
If you have $5Bn, other than power for power’s sake, it’s very hard to see how the next $100 or $500Bn can actually improve your life and happiness.
OTOH, being able to watch a Broadway show that you may have missed because you didn’t live in the same city, or a drive along the ocean while there was a beautiful sunset, would have significantly greater value to the quality of your life.