I actually replied for the sake of technical discussion (secure boot is ~1/10 of what a decent DRM should be, and adding the remaining 9/10 is a huge cost for the manufacturer).
But since you say:
> I, the owner of the device, ...
I am tempted to ask -- how much would you agree to pay for a phone that is working but will never be able to connect to the network (no 4G and no WiFi)?