To FF or Not to FF

So, I'm posting on ddaydj's site because I think I'm more likely to get responses here for this particular issue. While I was in the process of moving, I temporarily cancelled my FFXI account since I wasn't using it. I haven't missed it. So, I'm trying to decide if I should just let it stay dead. Should I reactivate it? If so, let me know WHY. And real reasons, not stupid ones. My income is limited, so I can't just spend it on whatever.