you don't get to pick and choose which features to compare.
the claim was that iphones are overpriced compared to products with different specs. that's bullshit.
obviously, if the specs are different, the prices will be different. no surprise there.
not only that, but the nexus 6 is partly subsidized by google because google monetizes the user by pushing ads which is how they can afford to sell it less than competing products. amazon does something similar with the kindle.
if someone is going to say iphones are overpriced, then they must also say samsung and htc phones are overpriced, some of which sell for
*more* than an iphone.the only fair comparison is matching all specs as closely as possible.
which one you personally choose to buy is an entirely separate issue.