I also think it's worth it. I've used it twice already at LAX and bypassed huge groups of people who landed on 3 other flights at Tom Bradley International Terminal. I got through customs quicker than the flight attendants and walked out in less than 5 minutes. I remember coming back home without Global Entry in late 2009 and it took me over 1 hour to get out of the terminal with my luggage because all 4 lines were crazy long (the lines were wrapping around the luggage ramps).