Electronic keyboards in general are built for a long life! In fact, products of some of the popular brands last for years and years.
At the same time, you also need to realize that, just like any other electronic instrument, dust can be harmful to the health of your musical instrument.
Protecting your electronic keyboard from dust and debris will ensure that it continues to work for a very long time.
Do You Really Need It?
If you have a keyboard bag, it can be used as an alternative to the keyboard cover but you need to realize that it can be cumbersome to put your music keyboard in the keyboard bag.