Okay so here's an update :-)

Hmmm.... maybe another way to think of it is that the cases are encapsulated by the point.

"The point I'm trying to make here is that watching too much TV can have negative effects on my general well-being" -- There's the point.

Cases:
1. I was late to work because I watched to much TV the night before.
2. I didn't eat dinner because I was busy watching TV.
3. I watched TV for a week straight without sleeping and now I'm blind.

So each case fits in or is encapsulated by the point.

Otherwise the point is illustrated by the case.

This whole concept bothers me too... I thought for sure I had it figured out a while back, people must be wrong and it just has to be "point in case." I finally began writing about it today, and now I'm leaning back toward the convention.

I may never get the point, but in any case I'm probably thinking about it too much...