My favorite is the audio equipment that advertises frequency response through something like 60kHz. Maybe this is so your german shepard can also enjoy everything your sound system has to offer. [Linked Image]

And I love the fact that they need all this gold-plated oxygen-free teflon-coated cable for their 20k audio signal, but any 100MHz oscilloscope probe is just gonna be a length of regular ol' coax with a steel BNC connector. In which application is signal integrity more important? [Linked Image]

-John