believe the original post was about worried that buying a truck w/ so many miles will stuff being more apt to failing. like power windows breaking, door handles breaking, spare tire holder being so rusted it breaks, tailgate latches. And to answer that yes alot more and it seems once one thing goes everything else fallows.
Diesel vs. Gas depends.
Diesel trucks are built w/ stronger front end, dual batteries, long hours idleing..great for plowing. able to idle is also great for hot ass days when you can let it run w/ a/c on while you cut...nother better then jumping in a cold truck when it 100 out.
I believe the thing about mpg while some others dont..but its not always the trucks fault for low mpg if your always heavy on the peddle