Yes, Nesianise, sometimes people get so involved with something that they buy all the 'souvenirs' that go with it. I suppose that that's how the 'memorabilia' industry works.
I found the boxed game reduced on Amazon. Maybe I'll buy it!!!
'This international code-breaking sensation is named after the great master of code-making. "When we find a good educational game we jump for joy. Well, we jumped very high when we came across the game...It has all the elements of a perfect game. It is easy to learn, it has quick play, it is challenging, it makes you think, and above all...it is fun. If this game does not become a classic game we will be shocked!" ' http://www.amazon.co.uk/exec/obidos/ASIN/B000640V0O/026-7420717-7097249
Then there's the PC / video game:
'The Da Vinci Code Video Game to Feature Action-Oriented Suspense Based on Upcoming Feature Film that is Based on Best-selling Novel' http://pc.gamezone.com/news/11_01_05_07_18PM.htm