Really, it's a matter of opinion and because I'm in Australia an MBA would translate to something like a graduate Masters in business administration or a bachelor of business, depends on what you're looking into. (something like that)
Now, how many people are out there doing the same thing as you, how many people are going to be rising up to that position come the next round of promotions, how many people are leaving the job. How stable and secure is it? At the end of the day, are you really going to enjoy it? If it's just for a fat paycheck you might want to reconsider. (It's not going to be that fat either unless you graduate really strong at a prestigious university/college)
It's just my personal opinion, i don't have facts or studies to back it up, all i've got to back it up are friends who have switched degrees from an 'MBA,' and others who graduated and are now playing 'WoW' when they get back from home from another day at the office and others who've decided to take their chances overseas.
Really, do something you are confident in. Money will follow you if you're good at what you do and you genuinely enjoy doing it. Don't fall into the misery of following the money cause it'll leave you with nothing. (Who cares if you earn 250K+ a year if you don't have life skills and experiences to back you up. You die poor anyway - life is about the journey and how you experienced it) however, in no way am i saying money sucks or should not be taken into consideration. I'm just saying it should not be the motivating force.
and yes, this has gone way off topic. Sorry to the OP.