In general the Superdrive is considered to be as the trademark used by Apple Inc for the storage devices. The USB Superdrive is said to be an optical DVD reader and recorder, which connects to the Apple Mac via the USB port of the system. Even though it is clear that the DVD is phasing out as the people are evolving to other alternative options.
The DVD drive is said to be a standard addition to the computers, when you attach the USB Superdrive to Mac, the user will be able to perform everything what a system with a DVD drive can perform. For you to be able to use the drive it is essential for you to be able to install optical based software along with the Superdrive.
Do anyone is really in need of the Superdrive? Then the answer would be a yes, as there are people who would to read or record optical discs for their own reference. It is absolutely worth it, even in the age of the fading out of DVD’s.