They all leak wherever a hole has been cut or drilled into a solid surface (windows, doors, hatches, rail stanchions, cleats, screwed teak decks, hardware mounts). Maybe not at the same time, but eventually.
They are all in a constant state of needing something repaired or replaced somewhere.
There are only three states to any item on a boat:
1) Something that WILL need to be replaced/repaired (Future)
2) Something that NEEDS to be replaced/repaired (Present)
3) Something that was just replaced/repaired (Past)