When I bought my CPO '02 "S" in Sep, I slightly regretted not getting a Boxster with PSM-then took it to the track. Sliding all over the place (street tires), hot day, low and high speed corners (Fontana)- I never felt the loss of PSM. Whenever the car went from neutral to slight oversteer, it was so easy to catch! The most incredible and forgiving car I've ever owned or driven.
Now, if you had to drive in snow or ice (not here in SoCal
), it might come in handy someday