A couple of points from me and my previous game store experience:
1. As said above, $140 in the grand scheme is not that big versus a bad review or disrupting the general feel of your store's community.
2. The store owner is obviously having issues understanding how to order because ordering 4 $140 items is not very smart for various reasons.
His piss poor ordering skills and his lack of customer services may lead to him dropping several lines of product and then losing customers on top of that. As others have stated, talk to him calmly about your desire to return the item for an "exchange" and not a "refund". Throw in stuff about the group of people playing X-Wing.