Might be a price mistake, That has happened to me at Gander Mountain more than any other store it seems.

- I was buying what i thought a good pair of $140 bino's and had to buy the display so he knocked 10% off. When I got to the front check-out they rang up 49.99 and i told her about everything, and she said, Im not worried about it and gave me the 10% discount on the 49.99.lol

- My ground max eclipse (that I had to return) was 99.99 on the shelf, check-out rang up like 120 something. I told her what the price on the shelf was... no questions asked she gave it to me for 99.99.

-I was looking for a El-cheapo stabilizer for my Girlfriends bow. I found a Tru-Glo Nulifier on sale for 9.99. Check-out rang up $30!! I had to work on that one a little bit. I told her The red price tag said 9.99. I had to go get the archery guy to check it out himself andvouch for me and they ripped up the sale tag.

Im betting thats what has happened in your case.