There are only about 2000 very popular boys/girls first names for West. This makes any of those in .com very very valuable. You could start instant business/brand on it, heck even adding s in the end is good for business (David's, John's, Julie's etc.). Depending where in 2000 they rank in popularity (and excluding some unique misspells that parents like), Name.com would go for $10K to $100K. Name.net, accordingly, would sell for $500 to $10K (ratio of 1/10-1/20).
There are probably tens of thousands of last names in the West, so just random not frequent one wouldn't be too valuable. Many of my LLLL.coms are someone's last name, which did not add any noticeable value to them.
But if it is a popular last name, that would be very valuable. Imagine the value of Smith.com, Robertson.com, Miller.com, Jones.com, Williams.com, Anderson.com, Moore.com, Harris.com, Gomez.com etc.