This is true for some, but I could say that "Bigger is a waste of money if you really don't need it. So Bigger is maybe better, maybe not better".
For guys like me, spending $$$ on anything larger than APS is silly.
+1
For a lot of folks, myself included, I current don't c the need.
My photo normally don't play w/ of of focus dof looks, and when it does, apsc is good enough. For me the only advantage to ff is higher iso w/ denser mp (>24mp). I solved my higher iso req for now by getting a stop more of my Fuji by using a speedbooster. I don't make pictures bigger than 13x19, so 16mp is already good enough for my needs.
It isn't to say I might one day get a ff, I am a gear head. I may get it used when I can pick one up for half of the price used. If I had really wanted one, I would have bought a d600 or 700 a year ago, considering I have a lot of Nikon lenses around still.
Apsc is just fine.
I read the update about no Fuji ff xp camera as well. I really think they are waiting to c how the Sony a7 plays out plus I think they are pushing to get their organic sensor tech (partner w/ Panasonic) ready in a product by no later then early 2015. If this is the case, they don't need to cause their development teams useless churn..
In the world of semiconductor manufacturing, yield is everything.. This is what drives the bottom line cost. The smaller the sensor, the better the yield. I am not sure if Fuji has their own sensor fab house or not, but Sony definitely does, so their cost is going to be much cheaper then others.. Sony sells their sensors as a third party as well, so their cost structure includes potential volume sales to others.
Gary