"Hell fellas, life's just too short to be quibblin' over details. How long ya plannin' to last anyway?"
From my perspective we're not 'quibbling'; we're just explaining where we are coming from.
To me the question of durability is a valid one. I tend to buy used boats and keep them for a while. When I worked for Charlie Wittholz, I worked on drawings for a 55 foot motor yacht. We did everything that we knew how to do to protect the steel on that boat. Roughly 20 years later I was called by a potential buyer of that boat and I went to look at the boat. What we found was less than half the plating thickness left at the stringers. That boat had already had part of its bottom replated and the cost to replate the remaining areas in question was more than half the value of that boat in perfect shape, and that number did not include the costs to replace the interior finishes, wiring and plumbing that would need to be removed in these areas. My current boat is 25 years old and I plan to keep her for at least a decade longer. So if she's been steel, she'd be shot instead of going strong.
Respectfully,
Jeff