re: roth 401k vs regular 401k

I originally included just the tax difference, but realized that I was inadvertently not telling the whole story, and edited the comment. The additional commentary was to point out that in even in this situation where the marginal tax rate difference at taxation is 20%, an unlikely real life scenario, the difference in net income was small.

Using the more reasonable scenario that I included at the end, the net income difference is $946,044 in favor of the Roth.