I can't tell you the last time I changed oil in a new vehicle. But the circumstances were that I needed a special wrench for the filter and it wasn't accessible from above. I think it was on a Plymouth mini-van in the late 90's.
And I feel the same way about rebuilding N carbs. A good kit w/ a new float costs $60 and usually does not come w/ throttle bushings. And you still need to buy carb cleaner to soak the carb in overnight. Around here, a N carb rebuild costs $85.