Personally I think the comparison is apples and oranges - LED use is a different lifestyle almost - it takes longer, your procedures change, etc. but its cooler and greener. So it's just different. For example I am considering using the light mover in a 4x4 tent just to get additional light angles on the plants by moving it maybe 6 inches one way or the other. On the other hand, throw up an HPS and it just works. The only issue is do you have enough money to cool the lights and pay the light bill for what you are going to produce and do you care that you're dumping mercury in a landflll 3 times a year and wasting half the energy you're using? If not, run with that and experiment with LED like I am (CLW 880) on the side. I have a 750 watt HPS that I'll be flowering in parallel with the CLW 880. I don't think anyone should just "change" because unfortunately the jury is still out. For me, I'll know by Halloween.
I can tell you this - marketing deception is at an all time high with LED lights. Blackdog led claims to be american engineered but is in fact a chinese knockoff called half a dozen other names elsewhere for a third of the cost. I've heard good things about Lush lighting, a local hydro store sold a bunch over the last two years with no complaints. Advanced LED is another clearing house for the chinese. I am using California Light Works because they are made here, by us, for us. And so far seems to be a solid piece of equipment that just might have enough intensity to produce some decent results. Time will tell. Good Luck!