Back when I went through my year-long binge, I racked up about $15K in credit card debt. For about five years, I was paying just over the monthly minimum payment and barely paying down the debt. Finally, I got serious and paid it all off this past year.
It wasn't just the huge amount of money, or the fact that I put it on credit cards with high interest rates, or the fact that I could have done better things with the money; what really bothered me was how, each month I was reminded of my stupidity and loss of sanity. How could I have been so out of control and such an idiot? How could I have paid so much money to talk to people I didn't like, nor respect, nor, really, got anything of value from?
Thankfully, it's done now.