Now that I do podcasting, using Skype, I needed to upgrade my microphone. One of my soundcards can be really unreliable when using the microphone port, so I thought I would try USB.
USB is handy - but it is easier to manipulate two separate ports. Fortunately, I don't have to choose. I got the Logitech folding earphones that have a converter from USB to standard microphone/earphone jacks.