Are you saying at any point in time someone in line can indicate to the bouncer they will buy bottle service and enter immediately? That sounds highly improbable...
Clubs in my city don't pay people to stand in line either, you either reserve your group in the guest book or didn't and are waiting longer for an "opening". Some clubs are at legal capacity and a line builds up but mostly they frisk everyone and ask for ID which takes a while and causes a line to form, which also benefits the club as a sort of popularity advertisement to others on the street.