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Tenure is not all it's cracked up to be. Today you are looking at being 40 before you acquire tenure. Sure, some people get it earlier, but I believe on average the numbers come out to roughly 40 or late 30's.

In those prime years before 40 will see very poor income given your education level and expenses, and a whole lot of stress and overtime spent in meeting all the requirements. Big publication list, talks, grants, scholarships, postdocs, teaching experience, taking on grad students, and perhaps even committees.

You really need to love the lifestyle, and not money, to stick it through to tenure.