I was on my way to work today (SFO) and noticed 8 UA 747-400's parked at Super Bay. On the G concourse, Uniteds international side, I saw 2 more. I dIdn't see if there were any at the MOC. So I was wondering, does anyone know how many are left? I was guesing 30! Thats something to see roughly 30-35% of 1 type for a airline at a city at one time.