I used to work in the event services industry and CES no longer needs to exist. All of the major companies can hold their own press events and promote their products. Why buy an exhibitor booth at CES when you could take the same money and DIY. Apple , Google and Microsoft get this. Also, things like Kickstarter do the same. In a few years CES , E3 won't really exist anymore they are already dead.
I'm not sure how many people we talked to will end up being buyers, but I'm pretty sure that we met people who will help the company succeed.
As a side note, I found the startup area so much more interesting than the main halls. Who cares about seeing a TV that's slightly larger than your last one, when you can learn about a treadmill that's thin and light enough to tuck between the couch and the wall, or a pet food feeder that detects which pet to feed based on their vet microchips?