Unless you are really stacking hit rating the +18 hit isn't going to do much for you at all.  Personally I like the more armor and stam that I get from the Belt of Natural power, and in the long run I only loose out on 8 agi and 3 str (if you gem the same) and a small amount of hit.  If you are making a tps set and need the hit spend the badges, if not I say farm the mats (they are expensive but if you find a engineer friend you can get about 6 primal airs an hour on a not very good day, and vortexes are easy to get).