I saw the Golds one without the straps for $18 i think. I've only seen that Iron Gym one in Academy Sports though, i know walmart usually sells a lot of Golds Gym stuff.
Your not sold on the straps? I've never used them, but need to ab work as thats my worst area of fitness. I run like crazy, and do some light weight work, but abs and love handles are lacking in development. Gotta look for every edge.