Hi Dennis. What are you using to record these? It looks like a circa 2006 iMac from the keyboard and angle of camera. I'm a Mac user from 1995 on but have just purchased a new Aluminum iMac with camera.
I have a Northgate PC, the camera is a crappy little logitech "ball" & the keyboard is a $9.99 walmart special.
I go through keyboards like my son changes his socks. Once every 6 months or so...lol. I have my PC right next to the workbench so I'm always getting ink, bits of polish & other debris down inside of it, so I don't see dropping more than a $10 spot on something i know i'm going to have to replace soon. That & i'm a heavy handed 2 finger typist.
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Tu ne cede malis sed contra audentior ito ~Yield not to misfortunes, but advance all the more boldly against them