LOL..... As good as ARB stuff is, it is quite expensive. My thinking as far as the LOKKA v's ARB locked diffs goes, I'm not really keen on fitting a compressor to run them. Plus the LOKKA items cost half as much. They may not be as good but from the reading, videos and reviews I've done and seen, they seem like the best option for me.
Meh, ARB, LOKKA.... whatever gives me the best bang for buck.