Congrats, I will have a celebration if and when I get to 100K, especially if nothing blows up before hand. I got my 2000 base Boxster a few years ago with 43k on the clock, it had two previous owners. It has 85K on the clock now, probably will be up to 90K after trips this summer. I get in the low 20's mpg around town (spirited driving), high 20's on the highway.
The only trouble, or maintenance issues that I can think of that were not self-induced by modding the car, have been plastic rear window and clutch. I change the oil and filter every 5-7K, plugs yearly, and feed the sweetie lots of tires, getting 4 new PS2's next week. It has been extremely reliable, it just keeps running and running strong, wait a minute, I am looking for some wood to knock on......
Ed