But you might end up paying more in terms of room nights (ie if you stay an extra night just to go to a waterpark the next day)
Best of both worlds IMHO is (if your schedule allows) to visit a waterpark on an MK afternoon (since MK is crowded then) and DisneyQuest / ESPN in the evenings (if you don't stay for Illuminations or Fantasmic), and thus use your 5 visits on your 5 park days.
But you might end up paying more in terms of room nights (ie if you stay an extra night just to go to a waterpark the next day)
Best of both worlds IMHO is (if your schedule allows) to visit a waterpark on an MK afternoon (since MK is crowded then) and DisneyQuest / ESPN in the evenings (if you don't stay for Illuminations or Fantasmic), and thus use your 5 visits on your 5 park days.