If i was looking at the price range...id be on a Corvette Z06.
LOL...but thats just me...
To me the Z doesn't feel too sporty when your obeying all traffic laws...so i drive my S2k most of the time around town..and track Z..or go breaking laws in the Z...or useing it to take my tahoe/truck luvin friends places because they can't ride around in my S2000 cuz it makes them sick. (S2K has a more communicative suspension, and the Z is comfy when your settled down)
The Z and the Exige are different flavors.
The exige is more pure, and has lots of compromises for some. To me i could live with them, and would choose the exige over the Z.
The Z has the handling, but not the purity, and with a bit of mods, net you the simular performance, but with a total different feel. But it will still be a blast and save you money to track more events and such...
I hate that I cant find a good track tire for the 19" Z wheels yet. If someone reads this and knows of one...please PM me.