If you have a math degree, you already know how to learn math. That hasn't changed. You're not going to try passing tests, so you don't really need a tutor.

If you have a math degree, you already know how to learn math. That hasn't changed. You're not going to try passing tests, so you don't really need a tutor. What you might want is a counselor to guide your "reading", as is done in places like Oxford. That can be worth the $40. All you need is updated texts, a plan of action, and maybe Wikipedia for an alternate take on sticking points. (Just using Wikipedia doesn't work well.) You could also look at the MIT or Harvard online curricula/syllabuses to get a feel for what the current subjects and texts are. Maybe take a couple of the free courses. Also, scan Kahn Academy first - that site is good for identifying holes in your background.