When the hair is Virgin, you can style it according to your need or liking. That means you can dye it, perm it or even bleach it as per your desire. Processed hair on the other hand is a different story as it has already been altered and changed from its natural state.
Color on unprocessed or virgin hair will not fade out and this is probably the biggest benefit as hair is natural and has not been subjected to dyes beforehand. The texture of virgin hair is also smooth and silky and it will last for about 2 years depending upon how you take care of it. Although purchasing processed hair might seem like a cheaper option, it will wear out in 3-4 weeks and become dry and brittle very soon so buying virgin hair might cost you a little more but it will be worth it.