It's certainly no cheaper, that said, I have three of them, one in each vehicle and they can easily save up to 30 mins on a journey when it's busy. It's all about priorities; our cars are all LHD so it's just time saving, especially with the new non-stop 30kph lanes, but our camper is RHD, and big and it's a PITA having to get out and run round to get the ticket so worth it for me. Also, looking at the blurb, it's a bit pricier this way due to the yearly charge which we don't get this side of the channel. Horses for courses really.