Strangely Worded Come-On

The last time I was in Las Vegas, I spotted this come-on at (I think) The Golden Nugget and couldn't resist take a picture.

I know exactly what it means: One free pull (on a slot machine) and you can win $2,500. But in my warped left-field mind, I imagined myself wondering how come a "free" pull costs $2,500. That certainly wouldn't be free, would it?

So I went inside, claimed my unfruitful free pull and mentioned that to the young attendant who was standing there looking all pretty. She gave me a blank look in return and just smiled. I suppose if you don't understand what an old man is saying, you might as well figure he's nuts and give him a nice smile.

I felt really "left-fieldy" walking out of there chuckling to myself.