I know a lot of people whose smartphones have become their primary computing devices. A big phone offers much better battery life, much more usability across countless apps, and it makes watching videos a tremendously better experience.
I think it is a real possibility that many folks legitimately like bigger phones.
Keep in mind that the Nexus 5 is still around and is still a perfectly viable phone. It will also receive the Android L update. It's not like the Nexus 5 is being killed and replaced with a 6" phone. Rather, a 6" phone is being added to the lineup.
There's also the 2014 Moto X, which is effectively a Nexus but with a 5.2" screen.
I think it is a real possibility that many folks legitimately like bigger phones.
Keep in mind that the Nexus 5 is still around and is still a perfectly viable phone. It will also receive the Android L update. It's not like the Nexus 5 is being killed and replaced with a 6" phone. Rather, a 6" phone is being added to the lineup.
There's also the 2014 Moto X, which is effectively a Nexus but with a 5.2" screen.