Practical advice on buying a domain name from AVC. This is the most useful insight for me:
“A good domain name is short and memorable. It doesn’t need to mean anything. Etsy is a good example of this. The word etsy doesn’t have any meaning in the english language. But it is short, memorable, and fits well for a handmade marketplace. As a marketing person once told me “find a name that means nothing and inject your meaning and brand into it.””
There is also a contribution in the comments with great advice on how to negotiate a purchase of a domain name, and the dynamics of the negotiation.