Turntable covers can be important depending on the sort of environment you keep your turntable in. If you noticed significant dust build up, have pets or do not store your turntable in an isolated environment, a turntable cover would definitely be a good idea, as the build up of dust can degrade your sound and and wear down your stylus.
Whilst most turntables ship with a perspex cover, many of our turntables - particularly the RPM series - do not. However, we do offer an aftermarket turntable cover for these turntables known as the Cover It.