They all told me because it was cheaper (free with 2 year contract). Not one of them mentioned customization or specs at all. They don't even know how to use the majority of the features and options. They didn't even know about the Play Store!
And that's why Apple wins out in the end. Whoever is making those phones is making them at miserable margins, and they aren't even helping Google, since 99% of the people who buy them don't actually use Google services.