I think we all just have a passion for tech, whether its super duper components or bargin bin cast off's we all like to share our experiences.
For me its about learning new skills and the fun of trying something different. The community support is great also, I've had lots of helpful tips and advice and that's what makes this Forum my home of choice.
I like seeing all the builds whether it be something done for a family member or friend. For me it doesn't have to be custom this/that to make me read the log. I enjoy them all either way.