Just a WAG from a rough approximation, but it seems like people who have moved to a larger screen, after they get used to it for awhile, just do not want any part of a smaller screen. Now there are some exceptions, like for people who are unpleased with an OS or a skin, but generally, you stay with bigger. I have progressed from an old LG flip, to a Droid, to an S3, S4 and now I am eyeing a Note 3. I get used to larger size phones very quickly and enjoy them, especially if the resolution stays high.