For maintenance costs.
The Truth About Ferrari Maintenance Costs » Ferrari DIY, Classified, News & More
Not that bad IMO.
If you are the type to only put about 3-5K miles a year on the car then why not. If you only drive your Z that much then you already know it is an impractical car to have. You bought it for fun, you bought it for the enjoyment of driving a sports car.
Alas, I cannot be that impractical as my Z is my DD.
But if I could be that impractical right now I would.