Well yes, hate yourself for seeing newer codexs cheaper.. but didn't orks come out 8 months after dark angels? So you just have to jump one up
Partially my showing that there are better units (post faq) within your codex, and better codexs to use your existing units , is just to point out kings flaw in just rubber stamping it
Which would you prefer, change units due to codex update and change in edition, or change in codex? Which is the less evil in your eyes (and least expensive)
She could always retaliate by using the guard codex for her green tide.. then you'd be up poo creak with only a straw for an oar.