One thing that Nintendo didn't reveal was a price for the 3DS. However, the President of Nintendo is talking about a possible price point. This is what he had to say:
"I have to refrain from talking specifically about the price point. What I can confirm is that, in terms of the production costs, it will cost more than the costs for the Nintendo DS today. Having said that, we believe we will produce enough value worthy of the production cost. We do not think we have to sell the products below cost.” -Saturo Iwata
I personally would pay 250 dollars for a 3DS, but anything over that would be a little over doing it. We will keep you updated with this story as it develops.