It's part of my relax time. I get thrills from success in game, for instance trifling new dungeons, new trials, new raids, achieving the highest level/ ilvl. Even crossing off achievements directly from the end game list. I can safely say that I balance the mmo and my personal life perfectly, leading a healthy and successful lifestyle. So what's your motivation?

Additionally, It's something that I can do in my free time around life's needs that I actually feel like I'm working on something that won't simply end, towards a goal that's ever changing.