Shipping kills it for me too and does not appear to be USPS based on weight.
actually most games are less than 6 oz. in a bubble mailer with all original packaging.
First Class (LESS than Media Mail) for under 13oz. (2 Games) would be about $2.25 with DC (1 game/6 oz)
Good Luck though...
and not too thrilled you asked CAGs to promote you on SD and FW...just me?
Yeah, just you. He stated why. If you don't want to help him out, then don't do it. Simple as that.
Good luck on your site!!!