Cats need to scratch. Some cats like to scratch vertically, others like to scratch horizontally, and some like to do both. If you don’t supply proper scratching posts for your cat, your cat will simply find its own surfaces to rip to shreds, and that likely won’t be what you want.
That’s why you should get your cat one or more scratching posts. The key is finding the right posts for your cat and putting it in the right place where you cat will actually use it. By shopping for the best scratching post, you can make sure you can keep your cat happy, and that’s all that really matters.