I have seen used whole roof rack systems for that price. However, if you have a Jeep Compass with the factory rails the footpacks will be more expensive. Gutterless and the footpacks that attach to your gutters are less expensive. That being said this is a Thule footpack that bolts directly to your factory rails.
I did a brief search thru rackwarehouse, amazon and ebay and my asking price is quite reasonable. Also I initially posted to send a PM with an offer, asking $150.
2011 Jeep Compass Latitude 4X4