I think that's true of the GPX4500 here in Australia too - best bang for buck. Not only that there is a much better & farer reaching dealer network + support from manufacturer/dealers & detecting  peers is readily obtainable.  The QED is closing the gap but having owned a PL2 there is still improvement to be had. Some of these are being addressed now by the sounds of it like auto tracking, better ground balancing etc. but these aren't currently available. Some of the 3D printed