This is a big question and I'd seriously advise you to consider the decision very seriously. Careful with any Q&A for such a life-changing decision.
Ultimately, an MBA programme is worth it for some and not worth it for others.
In my view it's almost never worth it if the school is not a top 20 worldwide program. Generally, individuals pursue an MBA for the opportunity to grow their career, open new doors, and, importantly, build a very strong professional/social network.
Remember that there are risks here. There is the opportunity cost of a lost 1-2 years of your current salary. There is also the direct cost of the MBA program. We are talking hundreds of thousands of dollars here.
That cost has to outweigh the benefits of your future job and increased salary prospects. But, what happens if you join consulting, thinking you'll make Partner and pay it all off, then realize you either don't like the job or don't have what it takes?
This is all probabilities and individual circumstance + values. Think long and hard!