Lots of people here are always asking others to do the work for them and yet, don't offer proper compensation. Theres gas(its not cheap you know), tax, padded bubblemailer (unless we can wrap it in newspaper for you), delivery confirmation (since being a CAG doesn't mean you're an honest person), paypals cut, and so forth. Offering $15 for a $9.99 is just unbelievable. I'm not telling you to give him a profit of $3 bucks, but if he makes $.50 cents or something, who cares.
Also, to the person who has sent out stuff at loss, hooray. Big deal. I seriously doubt you would send stuff out at a loss all the time. If so, I have some games I want you to pick up for me.
I see CAGs lowballing people all the time and its irritating. Then, they throw a shitfit because they think the person doing a "favor" is trying to price gouge him by asking for another $2-$4 bucks.