Your price sensitivity would rationally be set to look at the opportunity cost across spheres of spending- an extra $100 on your flight is 10 days of parking ti

Your price sensitivity would rationally be set to look at the opportunity cost across spheres of spending- an extra $100 on your flight is 10 days of parking tickets or something like that. It seems like you're falling to the "Mental Accounting" [1] fallacy, wherein you create buckets of money but forget that they're fungible. You splurge in one area and cut back in another. [0]https://en.wikipedia.org/wiki/Mental_accounting https://en.wikipedia.org/wiki/Mental_accounting