I am actually very much against declawing cats, but with my cat I had no choice. When my cat cuddles with me, he likes to dig behind my head. When he did this, he would leave scratch marks all over my scalp, neck and my ear. I gave him 6 months to learn not to do so. The final draw was when he got deep into my ear and manage to scratch the ear canal.
I choose to get his front claws declawed because he wouldn't learn and stop. To this day I am glad I did so because he still does dig. I no longer have claw marks all over my scalp, neck and ear.
He's had no health problems due to being declawed. Nor has my roommate's cat. They are both perfectly healthy cats.
So as for declawing cats. It's a personal choice. It's a choice that everyone should seriously sit down and debate on weither it's good for both the cat and you. Give the cat time to learn to stop a certain behavior you don't want them to do.