Management Course is not Best Or wrost..You can Think upon that, Business strategy is Going to be change in next few years & when The business is in changing phase Then All field requirements are going to be increase Like when some company Open their new Unit due to increase in Demand then The unit needs Markesting people,Finance,Operations,HR etc..

Soo Management is depends on Your Interest..when You Are at top in any field then you will definately boost Your career whether its on demand or Not..