Althought it is true will any boat, a pontoon boat can easily become solid
waste/scrap aluminum if you don't take care of them. Perhaps a large
percentage end up in recycling yards when the furniture goes to hell
or the hulls start pitting. If you are using a pontoon in salt water
you need bottom (or whole pontoon) paint.

I see. This probably explains the reason why there are very few ads
for used pontoon boats (most of the small number of ads for pontoon
boats are for new boats). Thanks.

Then I have one question:
Does this also mean that rusty pontoons are very difficult to fix?
Therefore, people don't even bother to fix them. I am under the
impression that fiberglass boats have other sets of problem too, and
probably also be difficult to fix. I don't know. I am just very
puzzled.

Jay Chan