And not to jump onto the marriage tax issue – but it does sound like if I ever get married my tax benefits from write-offs get killed by the additional income. sounds like a reason not to get married!
Maybe. Maybe not. At higher income, you may be in higher tax brackets, and the write-offs become more valuable, that is until you start crossing various income thresholds (e.g. approaching 150K) and various other phase outs of deductions and phase-in of AMT. Taxes are way too complex. The complications make it difficult to do what-if scenarios.