What's the overall opinion so far? Is this a 'need to read' as it comes out series or WFT? I see the hardcover is advertized to be released in July on Amazon.
I'm never a TPB type of person. Given the choice, I'll always opt for issue by issue. I enjoy the pamphlet size, cliffhangers, and waiting between parts.
You come out better spending $50 for the 16 issues with the HC, but you also have to wait until July, whereas the story will be done by May. If you don't mind waiting, and prefer HC/TPBs, then go that way.
I don't think it matters as much since this story is weekly.