You've looked at hundreds of pieces of cat furniture and still can't decide which one is right. Here are some things you should be aware of before you buy.
The most important component of a cat tree is the base. It should make the structure stable. When kitty runs up the tree or jumps on it, it should remain stationary and not rock or wobble. Look for a large flat base that will take heavy weight cats or multiple cats running and jumping on it without moving or swaying.
Scratching posts should be as large of a diameter as possible and should be wrapped with high quality sisal rope. Cats are naturally attracted to sisal rope and will usually scratch their little hearts out. Sisal rope is a very important part of cat furniture, you want them to scratch their furniture and not yours!
Beware of the cheap imported cat trees. Cheap doesn't reflect quality and more often than not, they are made with materials that could be toxic