The first 3-4 years I was going to Disney, it was very frantic. Getting in as much as we could, spending as much time as possible in the parks, going to the water parks, disney quest, downtown, EVERYTHING.
The last 4 years have been much slower. Typically sleep in...until about 9. Get up, maybe grab breakfast, do a ride or two, stroll around, grab lunch, do another ride or two, then head back to the room around 3 or 4. Relax. Maybe go to the pool for an hour. Maybe two hours at the pool. Grab a drink at the pool bar. Shower to get all the day's sweat, humidity, and sunscreen washed off. Change for dinner. Enjoy a relaxing dinner. Maybe go to the parks and get there in time for Wishes/Illuminations/Fantasmic... Possibly catch the second nightly parade at MK. If there are some REALLY late nights, we take advantage of those...nothing like going until 2 AM at the magic kingdom.
All-in-all, even though it is a much more relaxed pace, it's still quite tiring. I couldn't imagine trying to do the "storming the parks" thing any more. Too exhausting. With DVC, I know i'll be back...probably in only a few months, so I never regret missing anything on any one particular trip. I just enjoy myself and do whatever I feel like doing at any given moment.
I often play around with fast passes multiple times in the day to satisfy my whims. I always find something that makes me happy.