Amazon offers the GAEMS Vanguard Personal Gaming Environment for PlayStation 4 or Xbox One for $269.99 with free shipping. That's the lowest total price we could find by $44. It features a 19" LED-backlit display with HDMI input, integrated stereo speakers with two 3.5mm headphone jacks, storage bags for controllers and power supplies. It also supports PlayStation 3 and Xbox 360 consoles.
Happy Face Express via Amazon offers Prime members the Sony Silver Wired Stereo Headset for PlayStation 4, PlayStation 3, and PlayStation Vita, model no. 3000398, for $27 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $4.98.) That's $4 below our March mention and the lowest total price we could find by $4. It features 7.1 surround sound, retractable boom microphone, in-line controls, and USB.