HQ mics are great because you can fine tune the volume. It's high enough for my voice to come across strongly, but low enough to avoid background noises, people hearing themselves through my speakers, etc.
The idea behind my set up is to have a hands-free and always-on working room. I just walk in and know that everything is ready to start a call. Just click a button to make a call or accept it. No need to fiddle with headphones, adjust volumes, check if sound is working well, etc.
The only exception to this set up is when I have a confidential call, in which case I use my phone or headphones.
Everything is wired, as wireless sound devices are just not there in terms of quality and avoiding annoyances (see the HN thread called 'The first minute of every phone call is a torture now)
