$37 price drop. Amazon has the Sun Joe 48V 21-Inch Brushless Lawn Mower w/ Two 4.0 Ah Batteries (24V-X2-21LM) for $178 with free shipping. 

54lbs, 20" mowing width, 7-position height adjustment, 13.2 gallon collection bag, dual charger, batteries offer up to 25 minutes of runtime.