I also disagree with the hypothesis that given enough time, boat decay is inevitable. The evidences to the contrary are oblivious all around us. Those ships cross the oceans every day are made out of steel!
Steel in salt water. It is only a matter of time before rust reclaim these vessels back right! Not nearly true, most of them are older than you think.
Boats are a lot of work to maintain. I am not talking about fixing something that is broken, this is called reactive maintenance. I am talking about preventing something from being damaged, this is called preventive maintenance and this one is a lot of work.
To make things a little more difficult, not everything that was done at the factory was done right. A while ago, I finishes changing the steering pin on my Bravo 3. Some ?genius? (the quotation marks around genius makes it mean ?idiot? for those who needs everything to be spelled out for them) at Mercruiser decided to make it out of steel claiming that ?this part should not be under water that much anyway? this is an actual Mercruiser claim by the way. To add insult to injury, they sell this part for over $400 as is. I machined my own for much less and added some provisions to accommodate for their faulty design.
After I got my boat in water, I was testing the voltage difference around my props and some guys on the dock was watching me like I am from another planet. One of them finally came and asked me what I am doing. I explained the process to him and when I mentioned the Mercathode system he said "never heard of it". He then asked me if I would take a look at his boat and see if he had a similar system, he did!
There are some boat owners who doesn?t have the foggiest idea how to take care of their boats. For all they care, the boat should take care of them. They get in, start the engine and she roars across the sea, every single time and the time she can?t, they start calling her names. I see and talk to a lot of these ?maintenance free? type guys every day; I am not just talking about boat owners.
A maintenance free mentalities will let mother earth reclaim anything that is made of anything while they are sitting their behinds on the dock smoking cigars and consuming lots of alcohol.