Last time it is pretty rare to find some fairy tail tree houses in the woods. I was thinking that it might be due to financial crisis that cause the problems also in the fairy tail tree house construction industry. I wanted to proof my theory so I decided to go to the forest to search for evidence supporting my concerns.
It was a very long walk. The weather was just fine but there were no fairy tail tree houses at all. Than suddenly I found one.
It was very poorly constructed.
The second one which was standing not so far from the first one, was a bit better builded.
On the way back I found a classical, well builded fairy tail tree house. I was very happy to find such one.
Dear reader, I owe you, however, the answer : I did not find satisfying evidence and running some statistical programs did not lead to the significant results. The number of houses found today is not enough to conduct objective, unbiased research.
But I promise you I will continue ....... :)