Just Save Your Money
Here’s something that everyone, even non-cat owners, knows about the little fuzzballs: cats love cardboard boxes. You could spend a thousand bucks on a fancy cat tower or obstacle course, but at the end of the day, it’ll mean nothing to them. All they want is to pop their tiny faces and ears out of the box their gifts came in.
This may be a trait that cats developed over the past few millenniums. Or it might be a completely random thing that all cats in the universe do. Whatever the case, just save your money. Get a cardboard box for your cat instead.