Technic Control Center #9700 value

The LEGO Technic Control Center #9700 has a typical used resale value of around $120 based on real eBay sold comparisons [1]. However, current eBay sellers are asking as low as $15.78 for it today — a significant price gap. This suggests the item might be in high supply or the condition/edition offered is much lower than the catalog's standard used comps. Check the condition and completeness of the set before buying or selling.