Well the ANR and passive reduction is about the same between the two headsets and it boils down to purely features and price. Lightspeed is more aggressive in marketing than David Clark or Bose and is willing to take an upfront loss to undercut the market share at the top.

I would venture a guess Bose will respond fairly soon with some kind or rebate or trade-in scheme. Using the numbers from my own trade in case for a set of new Zulus, why would anyone be willing to pay 81% more for the Bose when it is not really much if any better than something else, namely the Zulu headset. That's a lot of money for GA pilot.