I'm not trying to make you choose one way or another, but why not try to stop playing for a while instead of deleting it? I stopped for over two months before coming back. Now I don't play anywhere near what I used to, but that's a good thing.
I understand that you feel you have "wasted" too much time here, and if that feeling is strong, then I would leave too. If you find yourself so addicted to the game so that you still play after trying to quit for a while, again, I would leave.
The reason I left is because of this, I found that I could manage my time better in FFXI than real life. When I realized that, I quit. Now when I play, I don't just walk into the door and plop myself in front of the screen for hours. I try to think of things I should do first, and set my priorities.
This game has actually helped me set my priorities straight.
Whatever you choose, I hope you the best of luck... do your best.
Edited, Fri Jun 10 11:27:21 2005 by FFXIandHALOtwoLOVER