Do note that it's sold by a third party but fulfilled by Amazon, so you still get FSS. Probably just as good as being sold by Amazon anyway. And the PS3 version is not far off at $14.99, but it has no online mode like the 360 does.
http://www.amazon.com/Virtua-Fighter-5-Xbox-360/dp/B000PIPUN4
http://www.amazon.com/Virtua-Fighter-5-Xbox-360/dp/B000PIPUN4