Your story reminds me a little of my brother. Same age, more or less the same story. He grew with me playing on my PC and Nintendo, then moved to the Playstation. He spent like two years on Runescape, asking me to top his credit or renew the account when he was like 12. Now he's 25 and plays way less than before: League of Legends, Real Racing 3 and every FIFA game.
That is awesome :-D
Wish I had a brother or sister to share my early gaming days with - it must have been pretty cool!