I just returned from the Leadscon conference in Las Vegas and had the thought that Clear needs to sign-up McCarran International Airport. Clear just launched in Dulles (IAD) and Reagan (DCA) which is great for my business travel needs, but I'd like to see them everywhere. Whisking myself past insanely long security lines is great.
No waiting behind someone who has five gallons of hand lotion in their bag and is upset that they have to throw it out. Clear travelers are professional travelers and know the tricks.
I don't know the economics behind an install, but just from a PR/advertising perspective Las Vegas would be ideal. It's the conference center of the US and the sheer volume of sales people visiting for conferences would be great free advertising. Imagine waiting in the sometimes insanely long lines and you see someone fly by in the Clear line.
Get ready for the sign-ups.
Maybe put a sign-up booth inside the secured area and sign people up as they come through.