I think you raise an excellent point here, and this is an issue I've also noticed - particularly on newer products that have added more HDMI inputs, scaled back the number of analog A/V inputs, and used the tradition of having those analog connections define the inputs. A slightly more robust option would be to have a number of "virtual" inputs with discrete commands on the remote (suitable for integration with macros on third-party universal remotes) that could be assigned to HDMI, component video, and coaxial/optical connections.