The heavy truck market is certainly drifting toward automatics rather than manuals.
When I worked for James Irlam Logistics, they were replacing the entire fleet of DAF HGV's with automatics (manual boxes with automatic linkage / clutch rather than a torque converter) due to the rumoured £150k p/a they were spending on burnt out clutches(!) Eddie Stobart (who bought out James Irlam back in 2008) were doing a similar thing but for fuel savings rather than clutch replacement costs.
Apparently, the "Jungle drums" at Stobart say the fleet managers are considering going back to manual spec trucks when the next batch of 500 trucks gets replaced as the fuel economy apparently suffers with automatics albeit not by much. When you consider the huge annual mileage of the fleet however, you soon appreciate how much say a difference of 0.5MPG between manual & automatic has a massive effect on the companys operating costs.....
Personally, I prefer manuals (despite my previous e38 and current e36 being auto!) but do admit the Scania "Opticruise" gearbox is a nice compromise.
It has a clutch pedal which you use to pull away and when you stop but once the trucks moving it changes up & down automatically which is a real bonus with a 14speed 'box I can tell you!
The recently revised Scania "R Series" has dispensed with the clutch pedal on the automatics completely which I feel is a backward step from the point of view of an HGV driver, auto's are no where near precise enough for some of the delicate shunting required to get a 53ft long rig in a space designed for a Horse & cart, being able to use the clutch for just the right amount of "bite" makes a big difference imo.
Whilst I love my current 08 plate "Opticruise" equipped Scania, I'm looking forward to a manual if & when Stobart decide to get them....