pee and ohno, back in the days when it was P&O "Peninsular and Orient Steam Navigation Co" and not dwp and carnival ripping the guts out of the company, the old PO used to make it legally binding that when their more famous ships were chopped, that only artefacts approved by PO could be sold on.
Indeed, the Great White Whale, the former flagship of PO cruises, SS Canberra, the ownership of the wreck didn't pass until the keel had been cut X times and the steam drive had been removed.
In other words, po wanted to make sure no smaller rival sprung up against them using their cast offs... Oh, sorry- I meant they "wanted to preserve their image"
When the sob/f time comes you'll be using them as a razor blade. Though I hope they start looking after them a bit better than their current fleet or they'll not last a full lifetime.
NOTE The above comment about their current fleet standards is my opinion only and is not necessarily the opinion of the forum 'management'. It is based solely on the fact that it's true.