单项选择题

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    There are many reasons for the sorry state of commercial aviation in America. But I come to you  as  a  technology  columnist  to  tell  you  that  technology,  too,  has  failed  you.  People  in  Silicon Valley pride themselves on their capacity to upend entrenched industries. Uber defeated taxi cartels. Airbnb made getting a room cheaper and more accessible. Streaming services are undoing the cable business. Yet  the  airline  industry  has  not  just  stubbornly  resisted  innovation  to  improve  customer service—in many ways, technology has only fueled the industry’s race to the bottom.
    “The airline industry has been on a steady downward trajectory when it comes to customer service for nearly 40 years.” said Henry H. Harteveldt. He noted that American carriers were improving on some metrics—on-time service is up, baggage loss is down and prices keep getting better. And what keeps deteriorating are comfort and quality of service for low-end passengers, he added.
    Airlines keep tacking on separate fees for amenities we used to consider part of the flight. And customers keep going along with it. “Consumers have shown that they’re willing to put up with an awful lot, including lack of amenities, mediocre or worse customer service and more to save money,” Harteveldt said. “And the airline industry has evolved to meet that desire for cheap fares.” Part of the problem  is  how  we  buy  tickets  today.  The  whole  system  is  mercilessly  transactional.  Customer service—that is, how the airline treats you—isn’t often part of the transaction. As a result, airlines have little incentive to reform themselves.
    Can technology improve how airlines work Some people have ideas for how that may happen. One of them is obvious and sensible: customer reviews. Last year Trip Advisor began rating airlines. Its new rankings, released this week, show that overall, airlines get an average rating of 3.7 out of 5 from customers. That is small potatoes, though. A bigger disruption would come from altering how we pay for airfares. In the same way that Netflix changed the DVD business by charging a  monthly fee, some consultants argue that a membership fee could radically improve flying. Your only techno鄄 logical hope for better service is your smartphone camera and the viral push of social networks.

The elite from Silicon Valley may feel so proud of the following things EXCEPT that________.