At this point in time it's all or nothing for me. Since my new job and the birth of my little girl, I had to stop raiding. I raided so much it almost ruined my marriage. I am definately glad I stopped raiding lol. However i still love this game. There is so much to do.
I now box because it allows me to do what I want, when I want. Many times I have up and left my desk in the middle of an instance and just let myself get logged out. Or i am farming or doing dailies and have to tend to my daughter Mikayla and just left the group wherever they are.
I can't solo play anymore because I wouldn't want to do that to the group I am with or my friends who I am playing with. I couldn't be a douche and just leave them hanging like that.