My wife got an MBA online and I finished my 4-year online. Both are from brick and mortar schools, in state, and we paced it so our employers paid for 100%. It was tough for some classes, but not hard. It was pretty time consuming though. We both got grade increases (basically a promotion, even though the job stayed the same) and pay increases, but the payoff had we paid for it ourselves would have been several years.

If you have time and can fund the probably 20-50k it costs, it could help in a future job. As a business owner, probably not very much benefit if you already know your business.

I have no idea how successful this guy is, but there are not many people more recognizable in the Tucson Metro Area. Population ~1 million. He has a new commercial for all sorts of times of the year. 4th of July, Xmas, seasonal changes, the list goes on.