Forgot to answer your original question !
Loved my CSL had her for the longest I've ever owned a car just over 4 years, purchased with 30k on and sold her with just over 90k, loads of miles on track, ring and road, it was my actual daily, probably better in std form for those duties than with all the toys I had on her by the time I sold it.
Had to scratch the 997 GT3 itch though, and sitting in a 996 v 997 as a daily it's far nicer don't doubt the 996 enthusiasts say is supposed to be better drive, either one requires effort and to get under the skin a lot more than a CSL.
Once you spend a bit of time with one it is far more rewarding to drive quicker as it does need respect and understanding to drive harder, once you do hook it up it's immense, and the manual box is awesome, learn to H&T and it's a knife through butter pin sharp, steering is go kart like responsive and with sport on, dampers switched to hard and traction off its a weapon, and the noise
Anyway regardless of whether your looking at mine or not, have a drive I would tick the box, pretty much depreciation free ish, paid 55k a year ago so up for 49,999 at the mo.
Hope that helps