Still going since open beta. I've tried to leave quite a few times, but it never really works out.
You and me both, my friend... I've been through plenty of month or year long periods where I played <5 hours a week, but I think the longest I've been able to truly "quit" was about 4-5 months. >_>
That's about the longest I've gone without playing, too. I don't know what it is about this game that keeps drawing people back in, but whatever it is seems to be pure evil. I don't know what I'm going to do with myself when Gravity finally decides to shut RO down in favor of some new game. D=