I bought a 200 Boxster with 75K on it last month.  Because of the high mileage and the fact I am buying it from a used car dealer (I don't trust them), I took it to Porsche Dealer for a PPI.  I was glad that the inspection reveals no big issues except that it requires some TLC.  I guess it is normal for any high mileage Porsche.  So far, I have changed the air filter, cabin filter and spark plugs (All DIY).  The car drives like a charm and I am looking forward to driving it more until it becomes too cold here in Boston.   

 Next thing on my list is to change both rear tires and the brake pads.