World of Warcraft: Wrath of the Lich King is the best expansion (and game) I have ever played in my life. I was so addicted that it affected my social life at the time, but it was a great time. I was a teenager at the time and remember playing for hours. I have no regrets and will never regret that I played too hard, although it would be better to keep it balanced. Bottom line is, I had a lot of fun, have great memories, and felt the love of the community. The fact that the nostalgia is still there all these years later is a testament to the hard work Blizzard put in during the golden era. A huge thank you to all the game directors, developers, and designers. We will never forget all the excitement and fun we had!