Did you remember what was on the billboard? Most billboards are designed to be at the side of a road and drivers passing by have only a few seconds to capture the information and process it.

“Eat at Joes” prompts thoughts such as:
Am I hungry?
Do I have time to eat?
Is it close?

The audience reacts to what you put on a slide similarly. In about 3-5 seconds they have scanned the entire slide for information. Why make them read for more information? Make it obvious. Make it clear. Make it like a billboard.