The post above is utter balls. Even by the low standards of road bike advice on here.
If you want an Italian bike, get an Italian bike, or you will be disapponted that you bought mass market tat.
Campag is a much better bet than Shimano in the long run as it needs far less maintenance.
But… Wiliers have been down specced, frames are still great and finish is lovely, but make sure you get one with an UltraTorque bottom bracket as it is just so much better than the cheapo/Shim.
My bet on why lots of them are getting sold is the front end is a bit low and racy for Sportive riders who should be on Specialized Roubaix bathchairs and not allowed to taint Italian bikes with their lardy backsides and poor road manners.