This will be a hard one to find second hand. It’s one of those keeper lenses. Even if I had an EF 400 F2.8 and an EF 600 F4 I’d keep my 100-400. The flexibility it offers and the ability to hand hold it make it invaluable.
well i don’t expect anyone to give it away for buttons if that’s what you mean but i’m not going to pay stupid money just to get one! i’m not saying people are overcharging, far from it, the conversion rate just messes things up a tad lol