Recovery is important. All the great riders that I know have told me the same thing. Its not the hard riding and work days that get you stronger, its the recovery as soon as you get off the bike or finish a run or get out of the gym. Its the rest that builds you. The work is nothing without the recovery. Its a hard concept to really get a grasp on, especially if you are my age, and as excited as I am, because all you want to do is work, work, work. And that is simply not how you improve.
On that note...It is recovery day baby, and I need it. : )