24/4-SF8 public art for publicized sake

It seems I have missed the opportunity to see some works by Vito Acconci and over fifty other artists here in San Fran. Why? Because they are part of the permanent Art at SFO (San Fran International Airport). These were really a bit stupid, for unless those who are trapped inside for transit, no one with luggages could stay long in the airport to look at them.
No wonder to my surprise, Kurt Chan praised over MTR art train with Wong Tin Yan's work in ampost, for the MTR claimed that it does not occupied the platform and slow down any trains' frequency. Rather than an extension to the display box as Kurt suggested, this moving display box only extended, in my opinion, the wrong way(/mentality) MTR handled art, as did its other arts programs. Only days before I leave, did I finally travelled by MTR from Wanchai to Causewaybay direction and for the first time saw the advertisement outside in the tunnel for the moving train, but it seems nobody take note of it. That, if utilized by artists for short film, might surely be something more interesting.
For the photo, if I am not particularly trying to document things, I could not have halted for this work posted here, that I encountered at HK airport.