I'm from Chicago, which is flat as a pancake. Moving to Arlington was great- flat roads get boring after a while. With no shortage of hills, I never will have any boredom with riding.
I guess if you lived in a flat area with no challenge, you'd see where I was coming from. :-/
I like Custis. That Custis loop is part of my staple cycling experience. It's fun.
Koffee