If an electric locker was available for the Trackicks when I got my ARB's I probably woulda gone that route. Less crap to stuff in the engine bay, like the compressor. But at least I can air up tires with it when needed, or use it to blow water out places it shouldn't have got into.
The air lines do add a bit of complexity and another thing to fail, but I still believe that in the long run, they are quite reliable. I did finally burn up a compressor motor, but ARB USA gave me their new upgraded compressor, complete, at their cost. That was after 4 years of use. That's pretty damn good customer service.
