I just got back from an All Hands meeting in our main office. Most people do it remotely. We had remote people presenting from their M-series macbooks. I was reading this thread prior to the all hands, so I was paying attention to the quality of the voices. Audio was being pumped through the ceiling speakers. They all sounded great and it convinced me that I did not need to throw money at an imagined problem... I of course reserve the right to change my mind as soon as I see a great desktop mic on a sweet deal.