Not sure about the STACKS issue, it seems to me that people that run stacks have BIG RIG envy and short little (you get the picture).
I have had my 12V since new and would never think about selling her, I do not have issues with the track-bar, it drives straight and the brakes are on par with/if not better then a new 3 genner, thanks to $1100. 00 and EGR (best money I ever spent, and I like to spend money). I do regular maintenance and believe me I simply can not wait tell filter replacement time, their is something special about working on her. I can see why some would like the newer trucks, they are nice and the quad cab would also be well appreciated. Seems that for many it is easier to trade in the old truck and buy new, mainly for those who simply rent (lease). Maybe they have never enjoyed the freedom of actually owning a truck, yes paying one off and calling it your own (for real). I don't know, may be may be not. Seems many now days don't look at the whole picture, just were they are now. For those that are always trying to impress others, and never ending up with something tangible to hold as their own, go ahead and trade your truck, or simply turn it back in after the lease is up. You will never win. Actually owning a truck is such a good feeling, I wish others could experience it.
I love the 12V rumble, I hate pulling up next to a new diesel and not hearing it. I like the response you get from making all that noise, It's a diesel one of the last of a dieing breed. I also like the solid feel of the 2nd gen trucks, their drive train is bullet proof and I know know matter where I go I well get home. Knock on wood, but I have never been let down.