I've cooked breakfast and made lunch. On HHI I think I cooked two dinners.
That said, the breakfast thing is actually personal preference. I prefer to have my coffee and "get it together" before I have to face the outside world. Also, DH and I both work full time, so it's a big deal to us to be able to sit down together and have breakfast "in." Besides, it's much quicker than going out for breakfast.
In HH, I made eggs and toast since we had the full kitchen. At Vero Beach, it was toast and coffee, yogurt and fruit mostly since we were in the Inn Room with just the kitchenette. On the last long weekend we did at SSR, we bought the
DDP, so I did no cooking other than making coffee (since we prefer our coffee to whatever they serve - Nescafe?) and serving pastries I got as our snack credit for breakfast.
Lunch I made at Vero Beach because I got sick of the counter service. And what's easier than making a couple of turkey sandwiches. Then we had dinners out.
At HHI I made one or two dinners. We sat on the deck, drank a few beers while I broiled a couple of steaks, baked some potatoes in the microwave and made a salad. No big deal, kwim?
I do agree that you shouldn't spend your whole vacation cooking and cleaning, but, I don't mind a little bit of my own cooking to all that eating out.