The problem with moderation is WOW TBC Gold that: It keeps your addiction circuits working which makes it difficult to make life-changing changes. It's like hibernating to avoid relapses, they are always just across the road.
Going back to WoW would cost you more than $15. It would mean months and even years of lost time. Also, your progress would get reset again your sacrifices (deleting your account and going through the initial stages of buy WOW Classic TBC Gold withdrawal) were deemed worthless and useless, and you'd risk further pain and discomfort later on than the current temptation you're struggling with.