I agree with Creep Dog, you get what you pay for.
I have to admit that the Shock and Awe factor in traffic is cool. Even so, for commuting around town, I rarely use my HID, it's just overkill. For cruising the single track at night, the HID just rocks, and their is just no comparison. At $300 for the L&M HID, I think that was reasonable. A Night Rider Digital system is around 280, and it's no where near as good the HID. A $700 light? I can't imaging paying that much, but ya never know.
As they say, don't dis it till you try it.