But they are growing fast ??? the biggest ARG in the last 12 months, Vanishing Point, cost around $2.5 million, and involved a huge video sequence on the water fountains at the Bellagio Hotel in Vegas as well as a prize of a trip to the edge of space.iPhone and GPS-enabled gamingWe will be looking at issues such as business models ??? most ARGs are currently funded by advertisers at the moment, so