If you're not convinced about the difference in accuracy of automatic valuations vs real people's opinion then try selling the domains!
Do you honestly think that .co.uk domains that are naturally worth £x,xxx - £xx,xxx on the open market are just lying around waiting to be registered after 15 years? If it was that easy why would anyone pay more than registration fee for a domain name? Think about it - the aftermarket is driven by the fact that good domain names are RARE, not on the fact that they are so easy to get that someone with no experience can hand register a couple of dozen one afternoon.
I really think you're flogging a dead horse with this and the other thread - if you believe that you domain names have real value then follow up your own convictions and try to sell them. Phone up Sedo and Namedrive and see what they say - offer them for sale on sales threads here, on DNForum, DigitalPoint and Namepros. If you're right then they will sell, if you're not, then go back to the very first bit of advice you were given on your other "my brand new domains are worth millions" thread by Accelerator.
"I would also advise not buying any more domains until you have learnt how to identify valuable domain names."