I had a friend neighbour who, like me, had a half-hearted interest in photography. I snowed him my new Minolta camera body, and ha asked me how much I had paid for it. I told him £450. He went in his house and cane out with the same model and told me he had paid $375, around £220 equivalent, from a shop in California. Because he was a Flight Engineer with BA, he just used to walk through customs and wave and smile at the Customs Officers.
FWIW: When I was in Germany, I came home a few times on the Bremerhaven - Harwich ferry. On one occasion I carried my guitar which was packed with cigarettes. (You were only allowed to bring 200 in then.) I had managed to get 180 in the guitar, a semi-accoustic Hofner. They rattled quite nicely. The Customs guy made me take them out so he could count them. Fair enough, but he paid no heed to the brand-new Hofner which, at the time, would have cost me around £150/200 Import Duty.