Navionics + Large clearly gives you the most maps for the money.

49XG
all of Norway incl. Svalbard
2.290,-

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45XG
Skagerrak & Kattegat
kr. 2.290,-

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28XG
UK, Irland & Holland
kr. 2.590,-

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46XG
Central & Western Europe
2.590,-

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The area to the Netherlands via the English Channel to the Azores, the Canary Islands and the Mediterranean.

44XG
Baltic Sea 
kr. 2.590,-

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