Originally Posted by semtex

Because it's not all about speed. For some people, they'd gladly sacrifice a little speed for more fun, and they perceive MTs as being more fun. This whole thread is kinda silly, to give my honest opinion, because the answer to the question 'Which is better? MT or AT?' is entirely contingent on one's criteria for what makes something better, which makes it entirely subjective. If speed in a drag race is what you're after, AT may well be the way to go. If convenience is what you're after, AT is definitely the way to go. But if you enjoy doing your own shifting and enjoyment is what you're after, then MT makes more sense. Point being, the question that this thread poses has no objective answer one way or the other. Everyone should just figure out what his/her priorities are, and then get the one that best matches up with those priorities and be glad that (a) the Z is offered with both AT and MT (unlike the S2000, for ex.), and (b) both transmissions seem to be very good.

Edit: I forgot to add -- we should also be glad that (c) Nissan didn't decided to scrap both AT and MT and replace them with a CVT (like they did with the Maxima).