My kids are true lovers of history. They began with ancient history and it's just as alive in our home today as it was that year. Probably because they re-read books and we talk about it as a family. So, I know what you mean about the time investment here, but with them that is not a problem. I just bought the Siberian iris Julius Caesar's Ghost this year. Am looking at TBs Spartan and Phalanx as well. Have Persian Robe and Corinthe ordered - fingers crossed they come through!