[quote name='Ruman62']actually there is a good reason. If you get parts from the same set, your ship's health increases, and you can get it up to eight hearts by finding the golden parts, but if you just keep the original parts it stay at four hearts and with all the enemies and pirates and the occasional mini-boss on the sea, i dont have to explain why that's a bad thing.
by the way, i know how you can rake in major rupees once you have the cannon and the salvage arm. there is always a pair of pirate ships just north of the isle of gust. if you defeat them, one of the skulls on the map that symbolize enemies disappears and the other turns into a red x. sail to the center of the x and salvage to get rare ship parts that you can sell to the treasure teller for up to 800 rupees.[/QUOTE]
Adding on to that: Once you have unlocked all the maps, you will find recurring pirate ships NOT ONLY north of the Isle of Gust, but also west of Goron Island and East of the Isle of the Dead. That's three locations for sunken treasure. And once you beat the temple, of course, u get 2 parts every time u finish.