You reminded me about another of my wasteful purchases. I used to have a cat (unfortunately she passed away many years ago) and I bought this really cool, pagoda-shaped cat tree for her. It cost a couple hundred dollars. Did she use it? Of course not.
We still have it because I refuse to get rid of it in case we ever get another cat who just might like it. We store certain clothing and accessories on it right now.
Aw, so sorry for your loss.
I ended up buy a really expensive sisal and wood scratching post, but the cat won't use anything but my sofa.