Sorry Harry, can't buy the ' they only get 5 hours credit for a sim, but there is a lot more work than that ' argument. The guys on the line are sitting in the aircraft at sign on time, can be sitting in the Desdi hold for an hour, and then waiting another hour on the ground after shut down, while the cabin crew do post flight duties, or they are waiting for a hi loader, or whatever.
The line guys don't get any perks for any of this.