Only words which are not much familiar are available today and I think its worth is just Reg fee at the moment may be its value may increase in future. 15 years or many years back none would have thought that onlinevideos.com videos.com and all will do this better.
dictionary domains are worth as long as the word is pointing out a niche well. once i owned aspersed dot com which i found at deleted domains sold for 35 U$ .
Depends if they have commercial value and high search volume. Just because it's a dictionary word does not make it valuable.