Hey, Tom, I know what you mean. DO is somehow strangely addictive! DO and Warcraft 3 are all I'm currently playing, and it's about a 50-50 split! I've still got a ton of games unplayed just sitting on the shelf (MOHAA, Freedom Force, Morrowind, etc.).
I don't know who said it in another thread, but if DO had the OPTION of being turn-based like the other rouge games, it would be PERFECT!