Studing an MBA program is not the easiest thing in the world to do. Most people who study an MBA are also holding down a middle management job, often with great pressure, and also have family pressures at home. However, they are motivated to maximize their impact in their careers, and are therefore prepared to take on the extra load of studying for an MBA.
And this is not the most straight forward online course to study. You need to be able to tackle a range of subject areas, from finance to psychology, in an environment that can be substancially different from the traditional, supportive classroom. You have to make the effort to initiate contact with tutors, classmates and outside bodies. You have to supply the motivation to continue to study over a long period of time, and you have to be able to prioritize your duties, obligations and desires so that you can accommodate study.
However, if you are good MBA material, this is the stuff of life for you. Self starters have a head start in management, and often, if you can motivate yourself you can find ways of motivating other people to do what you want them to. You can plan and prioritize, and doing it for the MBA course is just one more situation that you can handle.
And the rewards? Well, just take a look at the difference in lifelong income of people holding MBAs - according to the Bureau of Labor, it is substantial.