It is exactly what it is. It's a classic shape that we've known foe centuries. It has persevered as a shape because it's a perfect design.

I like that this product doesn't require a whole lot of different processes or chemicals - just machining the orbiform down from cubes of raw material.

I think the two different sizes makes this inherently have a higher value, since the backer (or market consumer) can pick which size is the best value for them.