That was price per sq ft for all home sales - not just new homes.
Existing home sales are also an important factor to analyze. In the aggregate, a change in existing home prices in a market is indicative of the state of the market, and it should not, as far as I can tell, be affected by builder choices, since the homes are already built.
Bottom line is, the market still has a long way to go before there is a recovery. There is still a large overhang of foreclosures out there, and if they proceed, how they will affect the overall market remains to be seen. In some markets, it seems there was a bottom in the low end. People with jobs could afford to buy a starter house at the low interest rates being offered. The question is whether that bottom will hold. I don't pretend to know, but I do think there is more room to fall at the higher end.