Consider the startup we all love to hate, Groupon. Groupon was founded solely on a Big Idea. I think thats why it got so much hate in the beginning, because all it took was that fucking idea and any one of us could have had it.
Without Lightbank to hyper-fuel its growth, one of the million knockoffs run by a larger company would have pushed to the fore and destroyed them. Every bit of stealth was essential.