When the FCC first relaxed the 75m sub-band restrictions allowing us to work phone all the way down to 3600, there was a significant migration of AMers "down below". Several went to the trouble to upgrade from Advanced or General up to Extra, just so they could operate on the new phone frequencies. There was talk of how nice the new frequencies were to operate, minus all the QRM, congestion and nonsense heard on 3870-90. But once the novelty wore off, one by one, AM operators began moving back up to their old stompin' grounds in the ghetto, and now, I rarely hear any AM activity to speak of below 3870. The same thing happened on 40m when the broadcasters first moved off 7100-7200. A number of AMers became active on or about the old 7160 kc/s AM frequency that dated back to the late 70s and early 80s, but again that was short lived and now about the only AM activity I ever hear there is a small group of 5-landers during daylight hours. 40m condx haven't been very conducive even for that lately.