I've had my one bench grinder for many years, only every once in a while have I thought I wanted a wire wheel on it, but I just use a brush or the wire wheel on my angle grinder for that. I was at Lowe's looking at the polishing wheels, about $5 each, and thought about the hassle of changing them back and forth, so I looked at the bench grinders and was very surprised at the price of the cheap one, so I just did it.