Too expensive. But that's the price you pay for using the latest high-speed transmission technologies. You can use them to connect two Apple computers together, or to connect your Apple computer to a Thunderbolt-enabled external drive (which is my main use for them). They are very high quality, like most Apple products, but at an attractive price. You can try to console yourself with the fact that these cables aren't "just" cables: if you physically destroy the end caps and look inside, you'll…