While a lot of the recent motherboard news has come from the Intel Z68 chipset and the new AMD 990FX one, the original Sandy Bridge P67 chipset from Intel is still very dominant on the market. If you have a look at Newegg, you'll find around 50 P67 based motherboard for sale while the Z68 sits around the 20 mark. A lot of the P67 boards are also in stock; they're not simply just listed. For that reason the P67 chipset is still an important one for companies as they continue to move stock.
For a lot of people as well, Intel Smart Response Technology and onboard video isn't something they need or want. Instead, they'd rather stick with the P67 platform which has so many options when it comes to boards. While the new ASUS Maximus IV Extreme-Z has been announced and is on the ASUS website, it's still not yet available. Priced at $364.99 US, the P67 Maximus IV Extreme is an attractive option for users who demand some serious performance."