Don't let others tell You how to price anything.
What is crap for one can be gold for another.
One example of the many:
tucows.com ---> Just Two Cows.
godaddy.com ---> Go, Daddy!
Etc.
I don't think you can can depend on appraisers alone to value a domain. If you work a market long enough, you get a feel for a domains value. Consider that if the appraiser says "comparable sales for two word domains were $xxx" and those two words doen't match well against your domain word choice. Not sure how estibot does it, but it's just as easy to look at recent sales for comparibles and what's available for pickings on the market at what price today. You will probably think more about the value yourself this way compared to paying someone $50 for an thoughtless appraisal.
Not defending anyone new. I'm pretty new here too.
Don't let others tell us what to sell our things for - Nobody is obliged to pay whatever. There is no right price for anything - Only what is effectively paid.
Value estimation is a matter of reference - Totally subjective, thus.
Value cannot be objective, because it is person-related.
So it cannot be scientific in any way.
It is a matter of belief/acceptance.
Look what Google says for: scientific domain appraisals
And it comes before ... Right, the Big Appraisers.
Anyway, who wants to pay for advice is free to do so.
Do not hesitate to ask me for advice.
We can negotiate a fair price ...