Bad luck yello, but stav & beast are spot on. Watchers are very rarely potential bidders, my family once tried selling our fishing boat.. 58 watchers, 0 bidders
All I can suggest is for you to lower the starting price (to about $50) throw in an old racing game you don't use anymore.
Stretch out your description because yours is just to short. Make sure you mention where you got it, all it's features (900' rotation, sequential shifter etc.), some games it works with, how it's one of the best value wheels available etc, etc...
While your at it give the wheel a quick clean and grab some more pics (pedals alone, box, extreme close up on the wheel...) so people can see exactly where their money is going. Oh and i don't wanna sound rude but the description should have proper punctuation, spelling and sentence structure as people like to make sure their getting the item from an organized, careful person who took the time and effort to make the listing tidy.
That will get your auction more attention, and help sell your wheel. Just make sure you put in the time & effort or you'll be selling yourself very short.
I hear Fanatec wheels are pretty great for both FM4 & GT5, so good luck mate.