I am an avid android fan! (but we're all friends here!) I think that it's because of various reason such as:
1.) Price- Apple prices things very high! Too high. I think £600 for a phone is too much (iphone 5s) for a iphone 5 with a fingerprint scanner and a slightly better proccessor. They call a £470 plastic phone ''cheap''. 5c should stand for. ''Cheaply made by poor, overworked Chinese people, but your gonna buy it regardless of the price; so we'll break your bank anyway, have a nice day!!''
2.) Changes- Many other phones today are making far more changes and advances than apple has. Apple's retina display of around 326 ppi has been made to look like chicken-wire compared with the nexus 5's 445 ppi, which also has a much larger screen! The nexus 5 also has a far larger, 2.25 ghz proccessor, so it's also faster. It comes with Android 4.4.2 kitkat offers a millions times more customisation than the iphone. You can change literally everything on the android os to your desire, roms, launchers, even kernels! All this on the nexus 5 which costs less than half as much as an iphone 5s. Apple's os isn't open-sourced so your stuck with the exact same os that everyone else has, leading to the origin of the term ''isheep'' by samsung.
Samsung's phones have a front camera which is always looking for faces so you can just at it when its in sleep mode to turn it on. Apple still still has a similar looking iphone to previous versions.Sure they have a fingerprint scanner but the moto x has an 'always listening' function which is self explanitory and the phone costs half as much! I think people want something different. Something fresh from apple, which is evident from the staggering increase in Android phone sales last year. The nexus 5 sold out in the first hours of it's release. Apple can call themselves innovative all they like but in truth, they really aren't these days.
3.) Repairing a damaged apple device
Repairing a broken screen on an iphone can cost upwards on £60, for a 4 1/2 inch piece of glass. This has angered people a lot.
oh and then there's this...http://www.dailymail.co.uk/news/article-2092277/Apple-Poor-working-conditions-inside-Chinese-factories-making-iPads.html
So their you go. Those are the reasons why android will be the shepherd to guide the ''isheep'' away from the greedy, abusive wolf that is apple. The only good thing apple has given us to date is the first gen ipod+itunes, because itunes is free; it organises your songs well.