Are you quitting your job to pursue an MBA?

First, I know this doesn't fit the forum very well but I can't find a perfect place for it so I'm just going to post it here. I have the option to take an educational leave of absence from my job to pursue a full-time MBA and return to the same or a similar position. My close friends and family say I would be stupid to pass up this sure thing by quitting and finding something new after graduation. I personally am planning to switch careers from engineering to consulting so going back to the same job does not fit with my career goals at all. I just wanted to know how many of you are quitting your jobs completely and how many are going back to the same job or company.