That's one way to look at it, but keep in mind how many other benefits are based off your salary. Raises[1] are often some percentage of your base salary. 401k match? Percentage of your salary. Bonuses? Often a percentage of your salary. Life insurance, AD&D benefits, long- and short-term disability, which you hopefully will never need, but if you do, all pay out according to your base salary.
Keep all that in mind when you are doing the math. With a higher salary you can pay for day-care yourself (and still deduct it from your taxes) and bring a sandwich from home for lunch.
1. If a raise ever comes at all. Do not plan on it when you are negotiating your salary, even if they tell you everyone has gotten a 10% raise every year for the past 10 years.
Keep all that in mind when you are doing the math. With a higher salary you can pay for day-care yourself (and still deduct it from your taxes) and bring a sandwich from home for lunch.
1. If a raise ever comes at all. Do not plan on it when you are negotiating your salary, even if they tell you everyone has gotten a 10% raise every year for the past 10 years.