I would love to see the cost benefit analysis that showed a company wide ban on USB keys would save more money than it cost. Meetings happen daily, an iffy wif

I would love to see the cost benefit analysis that showed a company wide ban on USB keys would save more money than it cost. Meetings happen daily, an iffy wifi connection is enough to waste the time of everyone in the meeting (10 minutes x 15 people is 2.5 person hours). These mundane things happen day in and day out. Someone walking around with an audio based keylogger is dramatically less likely to happen (and this ban on USB drives wouldn't prevent that anyways). If you ignore the cost of people's time then pretty much every security idea makes sense. But its not a good way to run a business.