Your dealer wasn't very honest with you. I went from a base luxury ATS to the base premium for 3500 dollars. I thought that was a very reasonable price difference for all the extras you get with the premium. Just to name a few you get navigation with 10 speaker surround sound, HID /LED headlights, 18 inch wheels, HUD, Driver awareness pkg, CD player,paddle shifters, active grill shutters, adaptive foreward lighting,automatic rainsensing wipers,foreword collision alert,12 way adjustable sport bucket seats and a few other things. I think thats not a bad price to pay for a much better equiped and looking car. 10 grand is a huge exageration and I would never pay that much more for a trim level change.