I would think when buying used you would want the newest lowest mileage (watch out for garage queen though) car you can find....
18 horses and 30 lbs of torque? there are chips that make that up for 600 bucks...not tested but they say it will happen
personally I love the 987 and remember thinking wow, this interior doesn't look as bad as I remember it....I didn't know there was a redesign...
so as most have commented
-newer
-close in power
-warranty
-and because I have one
- better interior/exterior
imo just better