Thanks a lot to the OP for pointing this one out. I had planned to book DUS-LAX when they were matching the ST fares last week but didn't get my act together quickly enough. That fare only allowed one connection on each side of the pond though and this one allows 2 or 3 so I've booked IST-LHR-YYZ-YVR-LAX and back the same way on AC/TK. Free stopover hotel in YYZ outbound and a deliberately scheduled 23hrs in YVR in the return, again with a almost free hotel from AC.