A month ago I acquired an a5100 and I loved it so much that today I went out and bought an a6000. I would have bought another a5100, but thought the flexibility of having the electronic viewfinder would be a good thing to have as well as dials for the mode, increased burst rate and a "control dial." I am surprised that the a6000 weighs so much more than the a5100. It really feels much "denser" Not much bigger, but significantly heavier. But I don't mind that at all. It's slightly larger than I expected (just barely fitting into the Think Tank Little Stuff It). I will probably keep a wide pancake lens on the a6000 and the 16-50 on the a5100. Overall I am ecstatic!