One of the most important things we do in life is figuring out what matters: We have to sort out what matters a lot, what matters some, what matters a little, and what really does not matter at all. As the eminent sage Eminem noted, you got one shot and you better not blow it. Cardio matters a lot.
In the end, the best laid plans can be thwarted by the simple inability to run. Keep in mind that even Powerscooters will be of little use during the Apocalypse. If the electricity is out, you won’t be able to charge your Powerscooter. Powerscooter or no, the zombie won’t give up. He’ll keep coming after you. Will you be able to keep running?