[Perfectlap]

well what you have to keep in mind is that Mitsubishi like Toyota and Honda make hundreds of thousands of cars. All the feedback they get on all their models is used to improve the reliability across their whole line up. There's more room for trial by error.
Porsche by contrast makes a miniscule number of cars. How many people other than in your driving/racing clubs do you know who own a Porsche? Not many probably....
While Porsche is not a true boutique car builder like Panoz or Lamborghini, its production is still very small relative to other sports car makers. Porsche probably aren't devoting large sums of time and money in improving the non-essentials in the car like the stereo, ac controls, etc. like Toyota and Honda choose to. Porsche have enough issues that are serious to concentrate on, like a flawed engine design and the other familiar problems of this car.
For a "rare" car a modern Porsche is a very low maintenace/repair car. You have to look at that way. It will never be an S2000.

besides driving an Eclipse and a Boxster is no comparsion. You're talking world class vs. mass build. Go to any track an offer an experienced driver their choice of the two. You'll be impressed by the feedback you get on your Boxster.
Enjoy your car!