Today the last page of the newspaper was about the price of a tree. Switzerland is changing the way it calculates the price that, for instance, a insurance has to pay when a car damages a tree. Usually is the price of replacing with a similar tree, including the removal of the damaged tree, buying a new one, transport it (sometimes by helicopter!) and plant it.
Seems that in some cities in the US they calculate the price also based on the CO2 it saves and the theoretical improvement on the peoples lives and health and the savings the city does buy having trees.
This to say that a price of a tree can sometimes be in the order of 20 thousand swiss francs (13’000 euros).