Hi dear , I want to say that cat trees are great for cats in many ways. It gives nervous cats a place to call their own, up and away from everything else.

My Mighty was very nervous and destroyed many of my furnitures and at last I decide to get him cat trees. My friend told me about them, so before month ago I found my cat trees. And little by little my Mighty like it and his neurosis reduced!
Now he can run up and down it and can use it to scratch. Not only does scratching help remove the old sheaths from his claws, but it also excersizes his front leg and shoulder muscles.

Another benefit that cat trees provide is that when they are placed by a window it gives the cats an opportunity to comfortably view the outside world.