A middle-of-the-road priced business hotel in Brazil, and that's all I can say to that. Stayed there for a concurso público (no earthly clue how to translate that) two months ago.
The thing was at 12pm which made it rather inconvenient to get lunch before the event, so I slept in, arrived at breakfast at 9:50, there were still half a dozen people there, food was a bit old but I got what I needed.
Ah, so it's not in the US. Most hotels in the US that serve breakfast would probably start cleaning up the breakfast around 8 or 9am (9 or 10am on weekends).