Digital BW, The Print

Is anyone using Arches Infinity out there? Is there any reason to consider it over 
Hahnemuhle rag varieties? It seem quite a bit more expensive. I tried a couple of sheets of 
the textured version and it is nice but didn't show me any improved d-max or tonal 
characteristics over what I have been using that I could see. Why is so much more 
expensive? The name?

john