another MBA, or Phd or Exec Ed. for boost

First, you're not getting into the full-time MBA program with the kids at HBS. You're exec MBA material.

Also, keep in mind that educational credentials matter most when you are EARLY in your career. So for example, if you decide you now want to be a lawyer after having spent a decade in business, then getting a law degree will be necessary to make that switch (since you're starting a NEW career). Or if you decide to become a schoolteacher after having spent a decade in another profession - then getting a teaching certificate/degree will be helpful in making that switch into teaching.

But you're not switching careers really - maybe switching jobs or industries, but you're sticking with a corporate/business career. You're basically looking to boost your salary in a preexisting career (corporate or business). At your experience level (10 years in business), any additional credentials you get isn't going to matter as much as your experience. They will pay you based on what you can contribute based on your past experience/achievements, and not on some degree program that you just joined at your age.

I hate to be fatalistic, but if you can't find the job opportunities that you want with your experience as it is, going back to school won't really do you much good. Go do an exec program if you feel you need to be refreshed, challenged intellectually, etc. (i.e. it's purely for self-development and NOT a resume builder) -- but don't go in expecting that it will suddenly make others see you in a different light. If you were a decade less experienced that may matter, but not now.