I myself do not do that. Why should I? Or do people with spare copies keep them at a different location, in case of fire, flood, earthquake, etc.
There is however someone at this forum with over 10 spare copies for his 3666 castle.
they are 11 actually!!! I love getting a set more than two times, especially the ones i can use for expanding a single set, or creating armies or use them for customisation!!!!
I also like to keep various sets sealed in their box, mayne as a future investment...so Yes I do tend to get more than two set on various occasions!!!!
You guys really are spending a lot on playmobil. Have you been inducted a VIP in your local toy store??
I am a VIP in three toy stores already!!! I get various discounts and usualy I get an interesting theme used fo the decoration of the fronts as presents!!!! and occassionally get free p&p off sellers from ebay!!!
I also tend to free klickies off their boxes and then place them in plastic zip bags and store them all together...I keep one copy of each on display!!!