I always loved the first playmobil castle, 3450! Spend so many happy hours with my cousin's castle but a couple of years ago, when I asked him if he still had it and if he could give it to me, he said he did not know where it was, he had to look for it and of course, finally that he could not find it anywhere....two possibilities... he could not care enough to look or m aunt probably threw it, or gave it, away... After that 3666 came along but I was not very interested in playmobil anymore...
Today I have 12 3666 castles and I love them!!! So many pieces to use in expanding and customising a bigger catle...even if you use all the wall sections, you still have a medieval house to use by its own!!!
I am in the process of reconstructing a 3450, but the 3666 offers more possibilities!!!