No reason for Control4 to discontinue support for a fixed door station, and they should allow older controllers to be used as I am extenders. Etc. etc. Actually the processor in an HC 250 as much more capable than that in the I/O extender, yet the I/O extender continues to be supported. This is simply about money. And I will be showing them in the future that I will not buy any Control4 branded hardware unless it is a controller