In every mountain pass you will not find ripped out transmission with the lever stuck in tow haul,
however, at almost every dealer you will find loose lipped salespeople with no idea what they are talking about.
Not sure what others find, but I do find that I can keep my rig in high gear with my foot on the fuel pedal allowing a little more up and down leeway in RPM and speed better than the cruise control can. I wish there was three levels of cruise one could select, perfect speed, some leeway, or maximum leeway in slowing before shifting, and speeding before braking.