What I was getting at is how willing people are to line up, wait for hours, and then spend ridiculously high amounts of money for something that doesn't even exist yet, while hemming and hawing over something they can actually see, hold, and experiment with. And you are right, buyers are crippled by a lack of information. Real estate is probably the largest investment or expenditure that anyone will make, and yet it is one in which we often come to the table considerably hobbled and ill equipped.
I guess I'm a contrarian, or maybe not yet thirsty enough to drink the kool-aid, but I would NEVER take a developer's or real estate agent's word for anything when it is my hard-earned money and quality of life at stake. Their opinions would be mixed with my own research and I would come to my own conclusions. Yes, sometimes they are wrong, but at the end of the day I am the one who has to deal with the consequences of my decisions, and I can live with that. Never in a million years would I buy anything sight unseen, especially a half-million dollar + home. I honestly don't know how the folks who buy from specs/plans at these sales presentations sleep at night. They are much braver than I.