They really do get obsessed with detail to stop faking, but many people just do not even look at a pound coin, as long as it feels right it will get spent. I don't think I have EVER had anyone reject a pound coin as fake when trying to spend it. I agree that it is more likely to be a move to try and generate some business...vending machines, shopping trolleys. I always liked the thrupenny bit, it had some weight to it, but you can guarantee this new coin will certainly feel a lot lighter.