From the Designer:

Yes there are a lot of other battery holders including my own, BUT this one is king of aesthetics with its color a and design looking to par with the Makita family of tools. Mounts solid to the wall and holds up to 4 batteries. Hollowed out to not use so much plastic and strong enough to keep them locked in. Lets face it we all buy the most expensive tools because (A)- They work great & (B)- They look good soooo….. the accessories have to match.