So.. you returned the original ones you got for 240? Or the ones that were 179? Which pair were 2012s? The ones for 179? Maybe my reading comprehension is lacking tonight, but your story isn't exactly clear to me.
Also, screw the store for telling you to come back and pay more. They screwed up, they need to eat the loss. Unless you want to just return the items for a full refund, then do so, but no way in hell should you go back and pay more, you are morally and legally in the clear. A store that made a mistake in my favor, then asks me to come back, would never see my business again. I say this as a guy who's managed several places, and I would never ask a customer to make up for a mistake I or an employee has made.
The place is called 'neptune ski and dive' and is located in Nashville tn.
I Personally have no ties with them. I think everything they have is at least a year or two old, and they overcharge like crazy. I was on the fence before, but now I realize I'm not being a dick for not wanting to go back.
I kept the $240 ruler restricted (bought at sun and ski sport) and swapped the 2012 $179 rulers for the i/os and a chesty strap. I paid an extra 16 dollars for the swap. After leaving they called and asked if I could give them my card info over the phone to fix the $20 error, or if I could come in and do it. My thought was to return it and tell them to fuck off.