how much is it to replace a thermostat on a 2013 chevy cruze

Simply put : It's because the thermostat assembly is an over engineered piece of ---- junk that is electronically controlled to 'supposedly' help the engine be more efficient .. You can save some money by purchasing the part from eBay .. Dealer price is ridiculous.. GM should be fixing this for free IMO! .. They usually last just long enough for the warranty to expire.