Many cat owners have strong opinions about the subject of declawing. For people who love their cats but who want to preserve their upholstery, drapes, and the like, declawing seems like the ideal solution to the age-old problem of clawing.
You take your cat to the vet, and when you bring him home in a couple of days, no more shredded furniture. The cat never understands that he is missing his claws, and owners get a kick out of seeing the pet go through the motions of clawing a chair or drape when in fact no damage is being done.