OBO Prom / Formal Dresses in Bozeman, MT

I have 3 dresses for either prom or formal. The first is a sheer black dress with a hot pink underneath, which gives the dress a reddish tint. Black sparkle flower print is on the black sheer part of the dress. Very pretty on and figure flattering. Size Small. Asking $50 ~ it has only been worn once. The second is a black dress, with silver jewels under the bust. Very comfortable dress and is great for almost any occasion. Size Small. Asking $50 ~ only has been worn once. The third is a long, blue formal dress with a sheer halter. Satin bottom and the back is just gorgeous! See the picture for the detail on this dress. Really hate to see this go but I know some girl would love to show it off for Prom or Formal. I paid well over $150 for it in high school (still have the original Macy's bag/dress protecter it came in) and only wore it once. Size 6. Asking $125 OBO for this one, please.