Well I have seen tons of 3 character domains (numbers and letters) expiring, are they not worth anything? What is the average price for a 3 character domain name
Generally, they are dropping en masse for a reason ... meaning they don't have much value at all above Reg. fee, IMHO.
There are, however, some combinations of three CHARACTER domains worth over Reg. fee+/+, so it depends on the needs and perceptions of the potential buyers/suitors.