I have a few domain names that I haven't used in years, on Network Solutions. I've tried to find their valuation using a Godaddy tool (they use a data science algorithm, supposedly!) and here is my list with the value, according to the Godaddy tool:
If you have some domains you want to sell, feel free to add them in the comment section below (spammers will be removed.) Could make for a more interesting list for potential buyers. Same if you have a better idea about their valuation. There is no traffic and no active website attached to these domains - so you just buy the domain name, nothing more.
I may offer discounts for bulk purchase. I can be contacted at vincentg [at] datasciencecentral [dot] com. The above picture shows details regarding analyticgroup.com, using the Godaddy tool.