Pursuing a Second Master's Degree(Part Time) : pros and cons
Pros... it certainly doesn't do any harm, you will learn something, and there is always the personal development aspect.

Cons... if you are going to make the effort to get a second Masters, why not build on the existing Masters and get a PhD? That is worth a lot more than a second Masters.

MBA... in my opinion, not worth a thing. A con. Not a true Masters by any standard.