You are very right.
The biggest issues I have faced so far: 2009 Scuderia 1 owner
I made sure to get a car with the interior wheel well covers, for me, looks better.
Headlight condensation issue, just got them replaced under warrany last week.
If your car is even 1 day out of warranty, the answer will be "NO" from Ferrari
There is an idle / start issue on Scuderia's. If you start the car from cold, it will run a little rough, but if you turn your car off, and re-start, it runs great. This is something that needs to be done at a dealer, it is supposedly fixed with an SD2 or SD3.
You need to be extremely careful with the carbon door panels. I have a little routine of getting into and exiting the car. I never ever touch the door panels. When exiting, I just pull the door handle, then use my fist to push open the door on the little mesh map pockets. Keeps them perfect and finger print and scratch free. You still need to be careful removing your seatbelt, as a quick release will be like the 360's, a whaaaaap into the panels. I always let every passenger know this too.
For some reason, the passenger seat does not have the little seat belt strap?
The shifting between an F430 and a Scuderia is night and day under full throttle. I have driven both, and was not impressed with a 2007 F430 Spyder.
Really depends what you are looking for, since you have so many great cars, but Scud vs. CS, I would always take the Scud.
If you want an aftermarket exhaust, get one with valves, as full open valves on longer trips wears on you, but for around town, they are a ton of fun.
Let me know if I can help further.