Yeah, I used to love WoW, tremendously. I remember when I started playing the week it came out, it was quite incredible. It was my first MMORPG, and I was amazed at the depth of the world, and all the things that I could do, and the thrill of entering areas where all the creatures were displayed a skull as their level. Needless to say, I played it frequently, and loved the idea of Rest XP, since it relieved the constant need of continually playing it to keep up with everyone. It was also quite fun to see the enemy gang up on Stormwind, and you'd rally with everyone else to try and repel them, or to join up with a whole bunch of team mates and attack Oggrimmar.
Alas, as I got closer and closer to the end game, things slowly started going down hill. It was almost impossible for me to do any UBRS runs, since I wasn't part of a guild that was of adequate size, and things seemed so pressured. There was this constant need to keep playing it, and keep playing it just so that I could keep up with what seemed like everybody else. Before too long, it felt more like a chore to play than something fun to do. It felt like a compulsory job so to speak.
Not to mention it became somewhat monotonous running the same instance over and over, and over again, trying to get a drop that falls off of one boss. I think it would have been nice if there was some randomness built into the instances to keep a somewhat fresh feel to them, rather than being robotically running it with everything essentially becoming instinctual.
Finally managed to stop playing it, as my grades were kinda lagging and I was determined to bring them up and so one. When I came back, I was so far behind, and so little else to do that I just quit. And besides, I didn't want to get caught up in the cycle again where I try to get better gear, just so that I can get better gear, so that I can get better gear, etc.