I don't see any value for @wires.
@pen would be good for a writer or publisher. Plus it's 3 letters. Roughly $80.
@com would be nice for really anyone. Especially a company. Also, 3 letters. $100, give or take $20.
@Wires - I'd say about 5$ for it, I wouldn't pay that for it personally.
@Pen - I could see this going for about 60$ maximum, maybe a little more if you found an interested buyer or a bidding war happened.
@Com - One of the nicer instagrams out there, it's short and would work for a lot of different things, probably about 100$ maximum, I bet you could drag more out of it though.