The Wynn Resort says they offer "Cash Back", but then they say it
can be used for "Free Play". This sounds like a distortion of the
usual meaning of the term "cash back", although there definitely is
value associated with getting free play.
I'm curious how this works. I assume you go to the players desk to
get your cash back, but they don't give you actual cash. Instead
they give you machine credits (free play) via your players card. I
also assume these "free play" credits can't be converted to a TITO
slip at a TITO machine (real cash). How does the system maintain the
distinction between free play credits and credits earned via actual
play?