It depends on what kind of institute you enroll yourself and what field of work you are looking for .
Firstly If you succeed in enrolling in the premier MBA institute ,do go for it as it always have a value of the same for life
If you are unable to do so ,think on what area you would like to shape your career and look into the field deeply and try to understand what needs to be done . If the field is growing fast with graduates having sufficient scope for you to pursue a career later ,go for it and then do the MBA
If you are thinking of a field that has already a plethora of MBA ,then its better you try out an institute for a MBA and fight the competition
So it depends on the institute you get to join,and the career field you intend to pursue . Think and take a careful decision All the best to you