I just drove a 370 Z for the first time today, I did however put 120,000 miles in about 4 years on my 350. I hated that car, because it was so fun to drive, I could never stop!!
I vow to own a daily driver next time I own a sports car, so I can keep it in perfect condition and track it without worrying about the constant maintenance associated with driving the car so much.
I found the 370 more civilized, refined, and easier to live with the 350. Aside from the issues of space, the car was meant to be driven. I say go for it