Because I didn't like combat, so I set a skill goal: get in as many guilds as I could. Started making huge money with iron and then coal in the guild (big for a nub f2per) and I've just liked it and with the lrc and p2p now i am making pretty decent money for me. Smithing just happened because, hey it was a skill to train. I don't think I've got 3 smithing levels since I got mems though