The competition for phone dock is from cheap laptop or desktop. Also, phone dock requires monitor and keyboard which is extra expense. Most people would choose laptop before full desk setup. There are also all-in-one computers and compute sticks that provide cheap alternatives for someone who wants simple or portable.
I already have dual monitors, keyboard, usb audio and mouse. Via a KVM switch, they drive a Windows 10 laptop and a Linux box.
So I don't need additional computers in my life but if my phone had docking support I'd seamlessly just plug it into my existing setup.
As the laptop and pc depreciate over time and phone hardware improves with every generation, a DeX platform becomes more attractive as a node on my KVM setup.
