[kk2002s]

I bought my 02 S 7 years ago with 52k miles. I was 3rd owner. I did not get PPI.
I now have 103k miles and while there have been repairs (non breakdown stuff) and I have been doing preventative replacements, the car has run really well, it gets me home. BUT (because of the scary interweb) every time I drive I do have in the back of my mind it could break at any moment - but it gets me home.
The example you are looking at sound like a very fair deal $$$ vs. miles, single owner.
Don't fall into the "Don't drive it until you do the IMSB" if you think this way then why buy a Boxster
Since you are in PA, you can drive year round, I do, except snow because I don't have to.

Just my 2 cents