I used to be a hater, but then I worked a couple of years at the Adelaide Casino valet.
Porsche buyers know what they are getting with the car, unless of course it's one of those mid-life crisis purchases.
It's the pinnacle of a driver's car. Having driven so many of them, from old 1986 911's to a single 996 GT3 (I have no idea how the guy was willing to let other people drive that thing) one thing is consistent. Feedback and agility. You feel every little bump in the road and the car responds instantaneously to anything you do.
Whilst I don't think they are the nicest looking cars, many others would find them beautiful. What you really have to consider is that the design hasn't changed that much because it actually serves a purpose. Porsches are some of the most aerodynamic cars around. They are an example of form following function.
Lets not get into a horsepower argument. Power isn't everything but you do have to commend Porsche for the actual supercar performance they get out of their dinky little V6's.
As for old vs. new, I prefer the newer cars. Porsche does well with understating the ubiquitous LED running lights every car seems to have these days. Also, I feel that the newer cars at least don't just look like a "sports-beetle".
"Unthinking respect for authority is the greatest enemy of truth." - Albert Einstein