I agree that the price is a hurdle. I origanally "discovered" the glee of Pico's via StaplesConnect in 2014, which had the radio built in. The total cost of StaplesConnect hub was similar to HE... therefore the "cost" is less in the technology and more in the packaging.. Injected molded shell, UL approval, etc.
The sad truth is, there's plenty of USB Sticks with the same hardware (CC1101) available... it's the ClearConnect license that's the hurdle, I believe.
Obviously Staples via their Zonoff partner, acquired the License and it didn't double to cost of their hub. But that was 2014 and maybe Lutron doesn't license anymore.