Yes, but I guess you missed the part where you can control it remotely with an air activated solenoid.
I am not trying to change your mind, but I would like you to understand the option.
point #1, instead of running wires and/or power to each switch/turnout, you run a single 1/8" diameter rubber hose to the switches, and they can be over 100 feet long, as opposed to the voltage drop for electrical wires, the small diameter hose can be easily hidden in the ballast under the track.
point #2, nothing to corrode, oxidize, or short out at the switch, no yearly electrical maintenance on switch motors.
Point #3, you manually control very inexpensively with a toggle that switches air (but I think you got that) and the toggle can be located anywhere between the air source and the switch.
Point #4, you can remotely control the air with an electrical air solenoid, available in multiple voltages and they can be operated from THE REMOTE CONTROL SYSTEM OF YOUR CHOICE
So you run 6 small hoses back to a central spot, where you have the air solenoids, power and the remote system that will interface to 6 solenoids.
I tied my solenoids into a DCC accessory controller, but you can use ANY system to power the solenoids.
The choice of what remote control system is wide open and essentially trivial, you pick what you want. Why not integrate it to your existing remote system? You can limit his controller to just the switches.
By far the biggest gotcha is the powering of the switches/turnouts, the maintenance of electrical wiring to them and the maintenance of the motors themselves.
Really the only downside is that given the cheapest way to control the switches electrically, the pneumatic system can be more expensive (the solenoids).
Greg