Many people feel Sony is the best when it comes to camera sensors.
Whenever Sony comes up with a new camera, sometimes they receive firmware updates to correct bugs, add features, etc.
Problem is, such firmware support is time limited, as any time Sony brings out a new camera, the preceding model gets forgottgen and no more new updates seem to show up.
The Nikon D700 was introduced in 2008, was discontinued in 2012 (4 years after introduction), but the last firmware update came out in 2013 (5 years after introduction, 1 year after being discontinued).
Compare that to the Sony A7, which was introduced in 2013. The last firmware update for it is dated 2015, a mere 2 years after introduction.
Same with the Sony A6000. Introduced in 2014, last firmware update is dated 2015, and the succesor already came out. *One year only*.
People see that as Sony just wanting to pump out more bodies. People understand that you need to make your profits, but many potential buyers consider after sales support essential, and part of such support includes constant, timely and useful firmware updates.
So, please, provide better long term firmware support for all cameras, current and future.