Dell Inspiron 7537 - Hinge issue

Hi,
Few days back, my laptop started a hinge issue. I was opening the lid, I heard a minor cracking sound. I checked the rear side - the right hinge made the sound and a gap can be seen between bottom plastic base and upper metal body (palm rest) near the right hinge.

• Here is the image of it.
  
  
  Also check the left side, to differentiate.
  
  
  
  
  I talked with dell tech. After looking at these pictures they were saying the laptop is 2yr old, it's normal wear and tear and they are not going to cover under warranty (I have warranty with accidental coverage).
  
  Does it say that after 2 yr of use the hinge is going to break. How on earth it can be a normal wear and tear. Even a layman who uses laptop can understand it's something not usual. And another thing I handle the laptop with utmost care, I always try not to open/close the lid frequently - may be twice or thrice a week. So it's definitely not normal wear & tear.
  
  After reading these discussions
  http://en.community.dell.com/support-forums/laptop/f/3518/p/19652040/20900898?rfsh=1460821206847
  
  https://www.ifixit.com/Answers/View/245572/Trouble+replacing+Dell+Inspiron+15+7537+display+hinge
  there is no doubt that it's manufacturing defect and result of using poor standard material, in spite of the fact the price dell took was premium for this laptop.
  It was 81000 INR in Feb 2014, i.e, around 1310 USD.
  
  
• Well, after little long conversation with dell support, they agreed to fix the issue.
  The support tech send all the required parts for hinge related issue.
  The visiting tech opened the laptop and it was the screw base molds in the palm rest assembly which were broken.
  Initially I was little stunned to see inside the aluminium shell it's all black "cheap" plastic. Pathetic.
  If this material cannot sustain careful handling, like I do, how it can sustain normal handling!!
  
  @dell: I don't understand why dell keep using inferior design for critical mount points, like in my case, the screw bases for hinge and bottom base holding screw points. We are paying premium price, we expect premium material in return.