any domain has potential when developed. i bet nobody thought, when acquired, that ebay and google would turn out the way they did.
but from a re-seller point of view, i believe that domain is worth reg fee. as a re-seller before picking up domains, you need to define the target market end-user you are after. and you also need to define what characteristic in the domain itself is sufficient enough for them to pay a premium and for you to receive a profit in a domain sale