[Glenn E. Meyer]

Good point. Given most economic gun crimes start with the gun presented and the victim complying, an expensive suppressor probably doesn't enter into the mind of the robber. They don't particularly care about such - any old gun would do.

Crimes of passion - having a silencer is a nonissue. They are driven by the intent and then go for the weapon. Having a silencer doesn't seem to fit into the interview studies of those who committed such crimes.

Deliberate assassinations or drive bys? Maybe in the extremely rare first case. Drive-bys probably want to make a statement by the pray and spray nature of the gun fire.