Jeff wrote:
...
Actually, its fairly easy to add flotation to a small boat.
...

Do you know of any larger sailboat (over 40') with built-in solid
floatation ? Doesn't it make even more sense to have this in larger
boats (costing hundreds of thousands of dollars) than in a $20,000
boat which doesn't carry much of our belongings ?

Even if we're careful and only sail in good weather, there's always
a possibility of a collision such as when somebody else doesn't have
their lights on.