Speaking for myself: Because it's a collection of lots or relevant data in one place. You get to pop up your head and look at the world at large. How is the ind

Speaking for myself: Because it's a collection of lots or relevant data in one place. You get to pop up your head and look at the world at large. How is the industry as a whole progressing, what particular areas are "hot" in terms of attention. It's well researched, it's sourced, it's free - quite likely the only compendium of that size that meets those criteria.