Quick Ship Electronics via eBay offers the refurbished Sony 1080p 3D Blu-ray Player, model no. BDP-BX520, for $39.99 with free shipping. That's tied with our mention from a month ago and $50 below the lowest total price we could find for a new model. Features include built-in WiFi, streaming apps (including Netflix, Pandora, and Hulu), two USB ports, and one HDMI output.
Note: A 1-year warranty applies, although it's unclear who provides it.