Once again, if it's a commercial operation (which hasn't actually been stated as far as I can see) why would Damo be needing to buy these headsets for the passengers out of his own money? Unless he is the owner of the business in which case then you have a valid point, but if he is just a pilot then the company should be supplying all of the headsets for the passengers and the pilot shouldn't have to worry about buying them?
I do not disagree with you about the 7 excited pax situation however, I could completely understand that, though my posts were referring to a private op.
All of this doesn't matter however because the original post wasn't intended to cause a discussion on the validity of different types of headsets in different operations. I merely posed my question as it wasn't stated it as for a commercial purpose and therefore my question would have been a valid one, if it were a private op situation.
Sorry Damo, I never intended to side track the thread like this.