Again on Buying Camera

Yesterday I bought a seven month old Samsung NX200 with kit lens for S$400.00 from a young lady. The reason for selling is to get a Canon S110 instead. The reason for me is the APS-C sensor size on the mirrorless small body, the 20.3MegaPixel picture output and most importantly, the price.

I start to understand that as there are individual preferences, there are choices made regardless of specifications and functionality, appearance, availability of lenses, picture quality.

Or is it the easy of use? Like the case of camera phone?

Or training needed to let the user learn to use the camera?

Or is it because manufacturers understand these points and produce many different models to cater for each individual needs?