I think that your experience is somewhat normal for the Boxster. You paid $8K and have done about $6K in repairs while I paid $10K for my '99 and have done about $4K in repairs (tires, clutch, starter, etc). So we both have spent about $14K to buy it and keep it running. You still have to fix the A/C and I just did the brakes (rotors/pads) and still need a new water pump. Close enough for me to call it even. Welcome to the club. The best thing to do now is to drive it like you stole it and enjoy the heck out of it because the money is spent and we're not going to get it back in resale.