The AM band seems to me to be pretty busy, but then these boards have been predicting for years the death of radio and every other medium of communication, except of course the latest technology, which somehow goes out of vogue in a few months. Good ol' libraries are also still pretty busy.
The posts I take issue with are those that say AM is already dead or will be dead by next Wednesday. AM is in decline, as it has been for over 4 decades. But the end is not very near and we can not predict an exact date; as long as some profitable stations survive, we will have AM radio.
...and how long have we been saying that other countries this, other countries that and other countries the other thing, so we should be imitators instead of innovators and originals in our uniqueness and greatness?
Most other countries did not license the number of AM stations that the US has done. That statement is true whether based on stations "per person" or stations per city or market. So there are often plenty of FM channels for AM stations to migrate to. This is the case in Mexico and in Canada and many places around the world.
I do not think that there is an AM operator who would not want an FM with a comparable facility. But the FM band is already packed under current rules, and that is part of the problem.