Try this: Incumbent products are so bad and so expensive to the degree it’s noticeable for a company this rich. Noticeable enough that it decides to spend money in engineering and highly custom hardware manufacturing is still a better bang for buck.
The initial cost of the Gizmo was around the same as an iPad but the long term maintenance cost was significantly less.
Every building at Facebook probably has a couple of hundred of these devices between reception, building maps, room tools, monitoring dashboards and video conference controllers.