usa-world-sales via eBay has the Refurbished KitchenAid 6-Qt Pro 600 Stand Mixer (KP26M1X) for $229.99 – 20% w code PRETTYDAY = $184. Shipping is free.
Target also has KitchenAid Refurbished Professional 600 Series 6qt Bowl-Lift Stand Mixer Silver – RKP26M1XSL on sale for $199.99. Additional 5% off when you use your Target Redcard.