If you're for the business, no need for an MBA IMHO. But if you want to excel with the rankings in the academe or corporate, it's a ladder.
you don’t have to get a mba to read and learn if you have the will and desire then you can learn pretty much anything
The learning comes from experience with what we do and that's the same with business. Some get lucky that they find their success through their first tries.
But if we're going to speak the entirety of the whole circle of business, failure is the first step into success and look at the every successful businessman, they'll say the same thing. Having an MBA is like a bonus.