Cell phones are expensive, but a cheap cell phone case will protect your phone from being damaged. The rubberized cases help you keep a better grip on your phone and prevent it from being smudged with fingerprints. Cell phone cases can protect your phone from getting scratched. If the case gets scratched, you can replace it much more easily than you can replace your phone's housing. The best cell phone cases are actually shock absorbing. That means if you drop your phone, the case will minimize the chances of internal damage. Such a small investment can save you hundreds of dollars.