Funny you mention the engine brake...My 10' Ram Diesel had one and i couldn't understand the need for it...Until i was haulin' down I-40 and nearly missed my exit...Fantastic little doodad
I bet you use it all the time for heavy hauling though right? Cross country hauling? Perhaps using a GPS and planning could have made that exit a little easier?
My point is so many guys go out and get the biggest rig possible for the wrong reasons. Usually it's to compensate for something else they are lacking. Or at least that's what the chicks say.