Well, I was on the "Blackberry hype" back in the day. Started with a Curve 8900 then a Bold 9700, followed by a Bold 9900.
I had it in my head that I never wanted a phone with a touchscreen keypad, purely due to how fast I could type with the keyboard on the Blackberry phones.
But Blackberry was beginning to feel a bit dated. Especially the OS. I've always liked the look of the iPhone since it got rid of the curved back (so, iPhone 4 onwards) and I already had an iPod Touch 4th Gen. As my Bold 9900 contract was coming to its end, I found myself playing around on the iPod a bit more, as if I was subconsciously preparing to make the switch to Apple.
As luck would have it, my contract with the Bold ended just as the iPhone 5S was being revealed and released and when watching YouTube videos of IOS7, I fell in love with the OS straight away. It spoke to my "minimalist" nature. I originally had planned to get an iPhone 5, but after seeing the 5S, I couldn't bring myself to not get the flagship device.