Yeah. The problem with those was that they generally didn't have a video input of any sort.

I have a display in my stereo setup that I got for a big discount. It was built as an iPod dock with built-in speakers and display, but shortly after they released it there was a new generation of iPods released that didn't work with it. They ended up getting sold through places like Woot for cheap (like $30 or so) because folks were using the video line input with them. I've seen similar small LCD displays lately at discounts for $70 or so.