Everyone knows that boats are expensive. We also know that you can never get something of great quality, quickly and cheap. What we can do is work as far in advance as possible. We can predict through data, guessing, and the old crystal ball that mechanical items and consumables will need to be replaced by a certain date and maybe they will only last 3 months instead of 6 months, but by completing preventative replacements we can avoid breakages or poor feedback.