I'm another sick one. My two non-Mercedes vehicles had 2K dyno oil changes the first 100K miles. Now they get 3K oil changes. My Mercedes gets two synthetic oil changes/year (seasonal) but only gets driven 5K miles/year.
I also rotate my tires every other oil change. It gives me a chance to inspect the brakes.
1998 Mercedes E320, 200K Miles
2001 Acura 3.2TL, 178K Miles
1992 Chevy Astro, 205K Miles