Walmart offers the Onn Full-Motion Television Wall Mount for 10" to 50" TVs for $12.98 plus $5.99 for shipping. That's $2 under our January mention and the lowest price we could find by $6. It holds up to 66 lbs. and comes with a 6-foot HDMI cable.
If you work in any of these professions, look out: Your livelihood may be in danger.