1. The fact that the sell in/ sell through numbers are very close, meaning that they wouldn't be able to sell that many more consoles than they are already shifting. (Based on data up to February, but since then we have had the launch In china plus a big month of releases in march)
2. I don't know how many units are being manufactured and shipped to retailers, but if it was enough to meet an increase in demand caused by a substantial price drop I would imagine they would have done so by now. Also, Increase in manufacturing numbers usually goes hand in hand with a decrease in production costs of the machines.
Until the manufacturing/sold in #s grow further away from the sold through numbers, I don't think a price drop can really be on the books. I'm not saying they will only price drop when demand plummets, but when increase in supply allows them to. When this occurs there will be other considerations as to when to price drop.