Who's using a D4 for amateur photography?

Interested in experiences of those NON PROFESSIONALS using a D4 (or D3) for amateur photography: family; traveling; etc.

As an amateur I've used a D3 since it was launched until now (just sold) and absolutely loved it, although in some occasions I've refrain from using it due to weight and size (I'm lucky and own multiple cameras I like).

About to buy a D4 I would like to hear from other amateurs using such a camera.
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Pedro
http://www.flickr.com/photos/klimrod