http://www.radioworld.com/article/analog-‘sunset’-grabs-am-debate/219247"Womble Carlyle attorney John Garziglia recited a litany of items that contribute to a rising noise floor for AM, such as “dirty” light bulbs and computers, as well as the plethora of electronics now found in a car dashboard."
How about making sure the plethora of electronics all over the place are not spewing RFI all over the place? Complaining about the noise floor, but the solution isn't to go digital, its to get rid of the poorly designed electronics.
I seriously doubt that analog is going anywhere in my lifetime.
The idea of moving AMs to spectrum used by analog television Channels 5 and 6 was discussed
There's a good idea, move them into their own band. Heh, that's where the old OIRT band is.