Wind Generator?

I'm seriously looking at getting one. We get lots of wind here in the desert southwest. I see the wind turbine as a supplemental way to recharge your batteries. The wind turbine I've been looking at will produce up to 250 watts of power. That won't be sustained, of course, but if I could get an average of 80-100 watts during the night, I'd be pretty happy.

Solar power during the day, wind power during the night. :)