The LA Metro's Airport Station is a Huge Success!

 https://www.youtube.com/watch?v=4TsUH1tmmBM , https://en.wikipedia.org/wiki/LAX/Metro_Transit_Center

https://en.wikipedia.org/wiki/Los_Angeles_International_Airport#Metro_Rail_and_the_LAX_Automated_People_Mover

https://www.flylax.com , https://www.flylax.com/lax-traffic-and-ground-transportation 

https://en.wikipedia.org/wiki/LAX_Consolidated_Rent-A-Car_Facility 

Although not as grand as a 10 car BART train, at least LA never opted to have a 2 car joke of an airport train like YVR has.  

Evolution of the Los Angeles Metro 1900-2028 https://www.youtube.com/watch?v=nH9toJw6-k8