I do see what you are saying here, and you are of course right, and in the cases where I didn't have enough dining credits to cover all the meals I had planned (due to me picking too many signatures), I would chose to pay out of pocket for some of my breakfasts, so yes, simply because they are a far less costly meal than the lunch or dinners, you don't get as much value for your credit, you are right.
However, if I DO have enough dining credits to cover my breakfasts, I will, of course, use them, like this year, because I am only going to do a couple of signatures, I actually do have enough credits to cover my breakfasts. I mean, if the credits are there for me to use, I would rather use them than pay out of pocket, even if the value isn't as good for breakfasts, because I do eat a nice breakfast every day, the cost would add up on a 10-14 vacation the more I have to pay out of pocket.