I will not say for everyone, but here is my experience. When it comes to my first electric guitar it was something like 'ok, the guys that I likes plays on this guitar so I should buy the same for myself and I will be supercool'. Now, when I become more experienced and get some style of playing I know that first of all it is hands, then guitar and then amps and FX. I can take any guitar and find something interesting in its sound and make accent on that, and as I move on exploring my way of sound I find more and more this 'somethings' that inspires me and guitar that have it becomes my main guitar. In siply words - 'this is my main guitar, because I can get what I need with it'.