Cost of living in California, especially the Bay Area, is generally higher than in most parts of New York (excluding Manhattan). While salaries might be comparable on paper, your disposable income could be significantly different. Consider factors beyond just the base salary: equity, bonuses, healthcare, and 401k matching. A lower base salary with better benefits might be more advantageous depending on your circumstances. Also, state income tax in California is generally higher than in New York, which eats into your take home pay.