Three NOS Zenith Rainbows (my favorite model) popped up on eBay. So I thought I'd mention it because I know there are some people still looking for Rainbows. I am so tempted because the prices seem very reasonable, especially the Flyback. If the Flyback was a multi-color model I'd get it but I have the black dial version already. The Item Numbers are 250518517476, 250518512770, and 260495333157. I don't know the seller but they seem to have reasonable feedback.