They do not know what is what at thrift stores. When I see a system, the chords are sometimes priced separately. I normally say they go with the system and they get tossed together for free. When I found a GB Player with no disc, there was a Gamecube else were with the disc in it, and they tossed it in, $6, woo. I had to carry the disc a few blocks to Gamestop with no case though. I got a spare DVD case from GS for free.
Sometimes if I'm in there and see a chord that goes with a system loose, and I'm not buying it, I stick it together for who ever does.
Once or twice they bundled something that does not, I got a Xbox with a PS2 controller, and a Tomb Raider 3 manual with a sealed Tomb Raider Last Revelation. The clerk normally does not care, sometimes they ask the manager, most of the time, if it looks similar, they will do it. A blender does not go with a pair of pants.
In other news. Been looking at this.

$180, been there for months. Maybe.