I'm not sure you'll get a discount anywhere except eBay/CEX/Gumtree/Facebook and then you may be taking a risk. Where is he abroad? Aren't they available there? May be cheaper as I think the prices have been adjusted for weak GBP now.
Just the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.