1.3 crop is fine but FF, not necessarily that important. Even for protraits, 1.3X is enough; otherwise we will really lose the body in built VR
That and more. Half frame brings more good things that a lot of people consider as acquired but who are not in fact :
- Very good lenses for cheap
- Fast tele-lens
- Light lenses
- Light camera (full frame are heavier).
- Anti blur at low speed
- A lot of other things I don't know.
What brings FF ?
More dynamic ? I used S3 for a while and it has no more dynamic than my K10d.
Bigger files ? to fill faster the CF card. anyway, at the end, 99% of shots stay on a screen.
Less noise ? JPG from K10d are really usable at 1,600 ISO with no problem. in 2% of the case, I need 1,600 ISO, in 0.1% I need more (let's use flash).
Point and purpose of a camera is to make photo, and to make photo, FF is for rich peoples because FF is completely useless for 99% of the people. Only rich peoples like to buy useless things.