Records pressed for radio broadcast?

As I mentioned in this post, the local record shop gets in records that were meant to be played once on the radio, then sent back or destroyed. I have about five of these. Does anyone know if these have any value? I rarely see them on Ebay and the audio quality is poor to very good, but mostly just average. I would think they would have some historical value since they are like time capsules for a long gone era of radio. This LP features songs from Extreme, Aaron Neville, U2, Michael Jackson, Billy Falcon, Stacy Earl, Jarmain Jackson and Shanice Wilson, plus a bunch of old advertisements.

Here's a cover from a 'Future Hits' LP I picked up: