a week ago with irrops from dfw-lga the standby lists were 100+ (for 3 of the remaining fts) (aa's "field" for the number on the standby list is only two characters, so you had to manually count your place after 99
), if there are only a few seats available, it is 'nice" to be on the listl, few would get a seat.
I dont know about the monitors, but I am looking at a Sabre list right now that is numbered 1-172 .