The problem is that every year is a 5 or 10 year anniversary of something.
0/5: The band’s formation, A Change of Seasons, Octavarium
1/6: A Dramatic Turn of Events, The Astonishing
2/7: Images and Words, Falling Into Infinity, Six Degrees of Inner Turbulence, Systematic Chaos
3/8: Train of Thought, Dream Theater
4/9: When Dream and Day Unite, Awake, Scenes From a Memory, Black Clouds & Silver Linings
That leaves no time to tour for new material and I don’t think anyone here wants to see Dream Theater turn into the world’s greatest Dream Theater cover band.