They seem like. PRIME domain names for selling currency for MMORPGS like World of warcraft/Everquest/Etc. I own both domain names
Mmorpgsurplus.com and Mmosurplus.com
I've never tried selling them or developing them though. Any sort of input on their value would be nice.

Probably not worth a whole lot. That is probably because the domain name is long so even if it is brandable you will probably get less random people seraching you threw Google.

the double mm in the domain name I think make it worth little value.