Stupid Signs

I went to an ATM today and was surprised to see a sign on it that said "There's a talking ATM available at this location". I had to think it through for a second but then I wondered who this was for? Talking ATM's would be needed by people who couldn't see the regular ATM and therefore they couldn't see the sign. Now I know the reason that the drive-thru ATM's have braille on the keypads is because of standardized parts. It would be more expensive to buy keypads that didn't have the braille. But this sign is clearly extra. Do they expect people to tell their blind friends about this?