Joe,
But when you're dealing with existing customers, as you are, they are buying you, not a system, because they know and trust you. It's a different ball game when dealing with new potential customers, many of whom are looking for something better than what they had last time around and that is where the Truck Mounted System appears more attractive to them, becuae, rightly or wrongly, they believe that such a big machine must do a better job.
Simon