Personally I don't have a problem sharing pictures of my stuff & I really like seeing everyone's stuff & how thier collections grow & develop overtime...seeing items I remember playing with as a kid or stuff I've never seen or knew existed before is something I find particularly exciting.
I wonder if it's some kind of primitive hunter gatherer instinct kept in male psychological makeup?
You know..for some of us, displaying trophies to show & impress other members of the 'tribe' with...we've certainly all got tails to tell of finding a highly prized item that we enjoy telling or hearing stories from others.
Thanks Mark

Originally, due to lack of space, I started to take pictures purely to keep track of what I'd got..it's developed into a nice (& only) outlet to channel whatever artistic creativity I'm capable of & which I find a lot of pleasure in.
Besides I certainly find it easier & feel more comfortable discussing my hobby & interests, on a forum such as this, with like minded folks than I ever would sharing (as many do) every intricate little detail of my personal life on Face-book.
Take, for instance, one of my work collegues who thought I was 'strange' for using a picture of my Action-man as my F.B avatar... yet thinks it's perfectly normal to announce to the world @ large that her little boy has, for the first time ever, successfully mastered 'doing a poo' in his potty.