Only time will tell who is right and who isn't. Reality however tells you that the majoroty of people are wrong most of the times, and those who guessed right don't do much to reflect that and take advantage of it. In other words, they think/believe the price will fall to x level, but it doesn't go further than that.
I have set up various buy orders between $1500-$3000 just in case there is a flash crash I won't be able to buy into manually. By having these orders open the chances of buying the potential bottom are much higher.
For the record, I don't expect the price to fall to these levels, just setting myself up in case it does turn out to happen.