I've always puzzled over people who bought the same car twice, that is until I had an accident in my 2001 S2K. I didn't think I would be happy in anything else, so I went ahead and bought the 2005. I can't help but be in a good mood when I take this car out on the road, it's the best handling car I can imagine. I do miss the 9000 Rpm scream, but I don't need as many aspirin now.
Of course the engine,transmission and handling are why I love this car. Plus it looks hot. I really like the rag top look and the sound it makes in a rain storm is magical.
I like the suggestions of a dash display of the current radio setting and an automatic boot. But I'd do without them if someone would give me adjustable lumbar support, being 6'2" can be hard on the back.