The only thing I have in mind to save my badges for is for The Blade of Harbingers. The plate gear seems more like for DW spec, I think haste would reduce that chances of me hitting MS/WW/Slam rotation. So right now I'm debating over saving my badges for the axe or getting Bloodthirster's Wargreaves. Take in mind that my guild has just started to farm Kara (my server lacks progression guilds, top 7 guilds haven't finished MH yet).
My Armory, if anyone has any other suggestions, I'm all ears.
(I know Arms is kind of useless in Kara, but it still helps on some bosses)