I think the 101 misses a lot of the other trails because those other races (like the Stoopid 50) were specifically created to fill in gaps in the 101, which has been around for longer than any of them. I'm not 100% on the history, but I think the first version of the 101 was all fire road. I don't really know the course that well anymore, but I do know that I liked the Stoopid 50 course more for exactly the reasons Jeff mentioned. I hear NH is a beast of a course.
Still, I think I'm going to the 101 this year (haven't done it in a long time) and was hoping to make it to Mohican as well, but I have to think about that some more -- I'm looking to do Leadville this year and the qualifier in NY is a week after Mohican. Normally, I'd just do it but it's actually kind of important to be in top condition for that qualifier because the better I do the better my corral start at Leadville (assuming I even qualify.) And everyoe I know who has done it has told me that getting a good starting corral is important at Leadville. I'm also going back to Shen again this year. Probably not going to make Fool's Gold, though -- I'll be using a lot of vacation time for riding/racing in 2015, and that might be one too many trips.