It's surprising how many runways I used in the 146 which have disappeared
Berlin Tempelhof - with Conti Flug, to LCY.
Edinburgh - old cross runway 12, an Air UK departure when others were queued up for 06.
Dublin - Cityjet from the old short 29, now dug up for the new main 09L/27R. Starting from the north side remote parking, must have saved 10 minutes or more. Again headed for LCY.
Regarding "sales" of the aircraft, I think a considerable number were leased from new by BAe, who set up a specific organisation, BAe Asset Management, to handle these, the ATP, and the Jetstream. They got quite a lot back somewhat prematurely, which had to be remarketed, which is possibly where much of the programme loss came from.