Frankly, after I bought the VP180 OW, I considered both the L/R M60 and M80 OW, yet, when I looked at the specs and the fact the M5 OW is the only one of the three that had the HP woofer already built in, I went that route and saved myself a bunch of money. With all that in mind, I really couldn't justify spending the difference just moving to the larger M60 and this is something that might want to be considered.