Finding a present for any enthusiast is hard. Its more than likely that you end up buying something they already have (at least you got their taste right) or something they don’t want.
AFOLs like me are no different in that regard and so my friends and family usually give me something unrelated.
However this year my wife gave me a family weekend at the brand new Legoland Pirate Island for my birthday. I would say that two days of Legoland Germany and a night in their pirates themed hotel is right on target!