I stopped when I was 16 (like half a year ago)...
I had a Goblin-vial deck for Legacy tournaments! Played quite a high level!
I still have like a few 1000 cards... Some really $$ rares like Wastelands, Goblin Piledrivers, Wooded Foothills etc...
Still have my deck complete with the full 200$ mana-base and the fast Goblin kill! But stopped playing as I said be4!
THE NETHERLANDS