I'll just add, because this just struck me; yes, the Grey Knights codex has less in it that the old one. But frankly, there's not a single unit in there that I would call dead weight. Draigo is perhaps below average, but honestly that's only really because Draigo is very expensive and doesn't fill your HQ slot (which is full of expensive dudes) rather than any problem with his unit entry. Dreadnoughts, equally, but since Dreadnoughts are kind of poor in every Codex, I don't really begrudge the GK book for that. Purgators compete for slot space, but there are worse units in the game than a couple of Incinerators jumping out of a Razorback or shooting out of a Rhino top hatch. I'm probably not going to bring Halberds, but Warding Staves, Swords, Falchions and Hammers are all useful. I doubt I'll use Psilencers, but Incinerators, Psycannons and all the Heavy versions of the weapons are viable.
Yeah, the GK codex is smaller, yes, Psybolt disappeared, yes, you need to download a small .pdf or keep your old Grey Knight book handy if you want to use the Inquisition. But I think, overall, the new GK book is better, certainly with regard to internal balance. Add in Officio Assassinorum, and Inquisition, and it's far better than the old book.
I think it might be something that affects players who've been playing for a long time, and in a fairly relaxed gaming environment - you become less concerned with external balance and more concerned about a Codex' internal balance.
Last edited by MidnightSun; 11-04-14 at 01:56 PM.