Hiya Roscoe...
Never a shortage of wind here in WA, Methane or otherwise eh... Biggest advantage is wind tends to be 24/7 whereas peak Solar is only about 4 hours a day stretch to 5 or 6 in middle of Summer at prime angle
Been eyeing off a VAT (Vertical Axis Turbine) setup for a while. Looks just like a roof ventilator if you haven't seen one. They are very very quiet compared to the Propellor jobbies and handle turbulence significantly better so can be setup lower to the ground and near trees etc or on a much smaller mast. Need slightly higher initial wind speeds but that isn't an issue here in WA. Pricing is similar to the traditional propellor style.
The biggest thing in a comparo to Solar is that a 50 Watt wind turbine is equivalent to about a 70 Watt Solar Panel as Solar Panels are rated at peak volts of between 18 to 21 not 12 Volts so to get 4 Amps like in this Jaycar version
http://www.jaycar.com.au/productView.asp?ID=MG4570 you need a higher rated Solar panel.
I can't justify one ATM as I have poo poo loads of electricity from my battery capacity and 100 Watt Solar panels.
For someone who is yet to purchase (and IF you live/camp where there is a reasonable chance of breezes) then I reckon a VAT Wind Turbine is a serious contender.