One factor that I noticed is that my suburban 1500 bounces like a pogo stick
all the time over some interstates especially in Wisconsin. There are parts
of the country where I don't notice this pogo stick bounce at all. After talking
with some campers they told me it is the Suburbans suspension that
does it. They didn't have this problem with their 1500 pickup half tons which
had a comfortable ride as good as my Suburban. I rode in a F150 which was
towing a heavy TT and it seemed smooth and calm. Maybe this is why I'm seeing
fewer Suburbans in campgrounds these days and more pickup trucks. The other
reason could be the ballistic rise in the price of a new burban in the last
couple of years.