The idea of outsourcing services has not been deemed novice. It has been prevalent for more than a thousand years now. However, the only difference would be it presently gaining plenty of popularity for various kinds of reasons. Outsourcing would simply mean asking a third-party vendor to work for you on a contractual basis.
The major reasons why any business might look forward to outsource a task would be when it needs skilled expertise. It would make sense to focus on your core mission of providing high quality product along with services to your customer by outsourcing the task to people who could perform it in a better manner.