Ok Guys,
There is no question which is better, the Matrice 600 is a far better bird than the inspire1 or for that matter the soon to be released Inspire II or any Quadcopter that will ever be made in the future. This is because safety should be your number one concern. Any quadcopter will drop from the sky if you lose a prop/motor or have a battery problem.
That is where the M600 excels! With six motor/props you can lose a motor/prop and still safely fly. As well, with six batteries you can have a bad battery and still fly. Yes it is a more costly bird but you get what you pay for. I have an Inspire 1 v2 and I Love It, but flying commercially with it, or any quadcopter, is really taking a chance. Real professionals put safety first, no question. I never take the Inspire 1v2 and fly on properties where I could crash onto equipment, cars, etc. Over barren land, cornfields etc. I do use it.
Be careful any fly safe!