badges & new gearFollow

Folks;

I am just starting kara (last time I was here was on a mage, 8 months ago) and now that all the bosses drop badges, I already have 28! With all the new 2.4 badge gear, I'm wondering if I should change out my PvP/Blue gear with things like Icon of the Silver Crescent and such, or if I should collect lots of badges to get the new 2.4 stuff (I know it costs a *ton* more than the older badge loot).

My armory shows my current gear.

Thanks!