After dropping my Nikon D600 camera about 1 ft/30 cm a few weeks ago on a soft carpet I shipped it immediately to Nikon USA's Service Department.   The only visible damage was a slightly shifted mirror mechanism. 
After 1 week I was asked to approve a repair in the amount of $300.  I found that high, but who am I to judge the amount (of damage)?
Again 1 week later the camera arrived, without any prior notice, not very well packed, with a letter stating that it was beyond economical repair.

I contacted immediately my insurance, Travellers, that same Friday evening.  They promised that an adjuster would contact me within 48 business hours. Monday morning I was contacted to inquire and request the Nikon note. That same afternoon I was assured that the full amount would be reimbursed (list price - minus 1 year depreciation = my actual cost).  Four days letter the cheque arrived in the mail.  Now that is what I call service!

I also contacted Nikon that same Monday.  They would look into it.  I have not heard back from them at all!  However, an investigation into my service account showed me that they had sneaked pictures into the repository (I also have my equipment listed for guarantee purpose...).  They wrote that the cheap plastic 'Made in China' (my description)  body had cracked in one location.  The picture reveal a minor crack.

My take on it: Nikon junked my camera in order to sweep an, on-going, and well documented reoccurring sensor problem with the D600, under the carpet.  The camera had already been twice for service at Nikon. The last time the entire shutter mechanism had been replaced.  Just an hour prior to the slight drop, I had taken a picture for Nikon to demonstrate that the problem had re-appeared, just after 1 month use.

The D600 had such serious design flaws that within a year Nikon had ‘created’ the D610, an identical camera to the flawed D600, except with 1 minor feature and a redesigned shutter mechanism.

The drop of the camera was my responsibility.  Extremely poor service and follow-up is Nikon USA’s.  Excellent and fast service at Travellers!  
I strongly suggest insuring and adding (expensive) cameras to your personal insurance. One small drop can be very expensive.

On a positive note (linked to Nikon with extensive lens material), I now have a D800.  A much better camera with an alloy body that better not drop soon!