Originally Posted by sailingdog
A properly installed teak deck can be a beautiful thing...but it requires a fair amount of upkeep compared to a fiberglass deck. A badly installed teak deck is a nightmare waiting to happen. The screws used to hold a teak deck in place can often be the source of water penetrating a cored deck's core, and lead to delamination issues.
I prefer to sail my boat, rather than varnish and oil my boat...so I have a fiberglass deck, and excepting the tiller, no brightwork at all on deck.
For what it's worth, I have teak decks on my boat and there is no varnishing or oiling involved. I have been advised that both of those steps shorten the lives of the decks. We just clean them twice a year.
But, if all other things are equal I can see why one wouldn't want to deal with them. Mine had just been redone when we bought the boat which made the decision a little easier.