New hardware will help you work faster and more efficiently. Maybe you need to upgrade your hardware to run new software applications such as a newer operating system? Does your PC crash regularly, is it too slow? If you computer is 2-3 years old upgrading is usually your best bet.
.::Benefits of Upgrading
More cost effective than purchasing a new computer
Extends the usefulness of your current computer
No need to transfer all your data to a new computer