The Closeout Guys via eBay offers the refurbished 3rd Generation Philips Hue White and Color Ambiance A19 Starter Kit for $149.99. In-cart, the price drops to $134.99. With free shipping, that's $55 under the lowest price we could find for a new unit. It includes three dimmable light bulbs and the Hue bridge.
A 90-day warranty applies, although it's unclear who backs it.