Many people willingly/unwillingly or directly/indirectly have both products. My wife insists upon having an iPad due to the hype, whereas I have an Android phone. I use the Ipad, but still prefer my phone and what it has to offer. Agreed I find it bemusing with the apparent obsession about Apple...
I can honestly say I do not know which version I have at present. If I have updates to install, then install them I do. I don't lose too much sleep in anticipation.
In line with previous comments, my Xperia Z2 has not had any software updates to contend with, still works like a dream, takes great pics, plays flacs etc etc and has not bent in any way.
Can't stop, just off to start the queue up for the Z3.
Having had both, I can safely say that all things...