That must be a new combo. I was torn, MS or MBA, I opted for the MBA because it gave me that fluffy stuff, and in business, it's a value. I'll tell you one thing, getting my MBA was so simple. Nothing like an ug degree in engineering.
U. Washington and MIT are two universities that I know of off-hand that offer dual degrees. Business classes are fun and easy. I took some evening MBA classes and like you said, they were really simple compared to engineering. But anything is simple compared to some of those stress and strain problems and differential equations.