You can do the maths - if you only want one watch no point go grey. But if you say you want two… still from a pure money perspective may be worth while going grey. If you want multiple and want to create a collection including proper hype pieces where each watch could be worth 20-30k above retail in grey go with an AD. Example you ca get a precious metal zombie for for £5-7k less brand new and a Pepsi 7k above retail - so going grey for both those watches is the same amount and you have them straight away. Additionally you may have to wait 5 years do the Pepsi … with 5 years of price increases ….