Ronzi, the Judge Judy comment was mint.
I've taken my Boxster to Newport Beach Porsche in California for its last two oil changes. While they were very good with the service, and after my insistence, did allow me to watch-- at $200 for an oil change, it no longer makes sense. I took it to them for the 60k mile service, but that is one of the most important services and I forked out the $1300 to make sure it was done right.
However, as a 22-yr-old army lieutenant, such service can put a hurt on my wallet- especially here in Germany where parts and pretty much everything else are ridiculously expensive. No need to dip into the buns fund when a simple afternoon can save me some cash. $200 is a weekend in eastern Europe. It's true an oil change isn't rocket science and I've seen sites that walk you through it if you need the know-how--this one is Boxster-specific--
http://www.986faq.com/7-0/default.asp#008
I take care of the simple stuff myself and leave the real work to the pros.