You are entitled to your opinion, because they are worth as much as somebody is willing to give you. I do not know what everyone is willing to give you, so you may be right and it may be worth holding onto your domains. I just wanted to give my opinion as well, in case you were open to adjusting your prices or selling them as a list. Good luck with sales, please let me know if you are able to sell any of these, as I am very interested to keep up with that.
Thank you for the pointing to digital goods section. I will do so. So far, I had cryptonewsfeed.com for a year or so and got $1500 offer, refused, they jumped to $5000 on my rejection. I counter-offered 7k and they backed down (I have GoDaddy representative email to back my saying if need be). But in the beginning I had bought it for a crypto news aggregator, which we are developping with a friend now, so I wouldn't let it go for cheap cause I'd have to find another similar good domain name for it. Same for cryptodatapool.com and hashratedatafeed.com which we will be developping afterward.
All the others, we made a python script using namecheap API, prefix "crypto" and then inputed tons of different lists as suffix. Most capitals and countries we taken, so I bought the ones that were still available.
Other than the 3 aforementioned domains, I am opened to negotiations or collaboration on a project.