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Find them online cheaper, ask Sony Australia or one of the retailers to price match. Will become cheaper when the next generation comes out, which is anticipated this year.

My motherbot knows I cannot hear her when I have them on and has to get my attention if she's talking to me. Well worth the sanity. 

I have the previous version and that current version. WH-1000XM5 have better noise cancellation while WH-1000XM4 have better sound quality but require you to keep updating the noise cancellation in use.

They can also be a tax deduction because it can be linked via shitty Bluetooth to a computer and used for Voice chat. That's my plan for the next generation.