OP, I've sold around 7 or 8 Big Stoppers at-cost for $180 shipped/insured here (one of them to Nathan). I encourage you to sell your 3 when you get them at cost as well to the forum to help discourage the practice. I think the few that I've sold have discouraged a lot of sales at $230+ prices but the more people do it, the better.
My p.s. was a lame attempt at humor I don't have 3 on order... but if I did I'd do as you did and sell them at my actual cost plus shipping.