I purchased it for two reasons - 1) Its specifications are better than previous ones. If you have iPhone 6 and above its not recommended 2) iPhone as a device of luxury.
Like- 2 rear cameras, improved camera quality(optical image stabilisation, quad-led truetone flash), stereo speakers
Dislike-Price, no headphone jack, no memory card slot
I preferred iPhone over others because of its brand value and a device of status symbol.