Where is the best place to buy them for the best price ?

 

Which model? If you are talking about the Win wheel, I'm not sure if they are available anymore. They used to only be available at RK Sport and it appears as though they don't carry them anymore.

A close knock off is the LG Motorsports wheel.
http://www.lgmotorsports.com/OCLT1_Fbody_Wheels.htm

 

Thanks Brent, that's exactly the wheel I had in mind.

 

The Konig Monsoons look very similar as well, but they are also discontinued. You can probably find a used set (I just did).