Just noted that there is a inconsistency among the published benefits with Marriott. When I look at the page
linked somewhere earlier in the thread I see the language posted here, however when looking at the
Elite T&C, still the old language persists.
Given my experience with Marriott in general showing the (more prominently posted) first link will have your breakfast comped on the weekend when in doubt, I think it would be nice that the second place where the guarantee is posted should also reflect the "new" wording.
In terms of "running out of food" in non-US lounges: I have not experienced that here in Europe. One time e.g. in Berlin they were running out of the Chicken they offered (with the second hot dish still available), but they went out of their way to get a different second offering (steaks from their restaurant). And in Frankfurt when the same happened, they called down to the Sports Bar to bring chicken wings to the lounge.
No lounge in Europe I have been to has been out of food during their regular hours, and most still have quite some offers available even after official food hours...
Greetings - Dirk