I am, in fact, a reformed commando.
A lot of it comes from having been there so much that you no longer feel cheated if you miss a parade or don't feel like waiting an hour for Splash Mountain. But consider this:
In the last two years, I've begun "smelling the roses," as I like to call it. It helps us that we just don't care for AK. That obviously leaves some extra time! But we've found by being less "attraction oriented" and more "magic oriented," we just keep finding things we never saw before.
Epcot in particular has become a wonderworld for us. There are so many little alcoves in which to sit and observe. We like people-watching. We like looking at the architecture of the buildings, which is so detailed you could stare at it for hours and still be appreciating it (and finding hidden mickeys!). Last September, we went in the Stave Church in Norway, which we'd breezed through before, and we spent an hour. And there's rarely anyone in there.
We also stayed in MK on Saturday until they kicked us out. If you're never enjoyed MK as the crowds thin, it's a more magical place than normal at this time. And the photo ops, with most of the crowd dispersed, are great. Not to mention that getting out of there is more pleasant a half hour after the fireworks stop than five minutes after.
And an example of "seeing things." We were in Downtown Disney. We got caught in a half-hour torrential downpour right in front of the
Disney Store. I sat to wait out the rain, and started noticing something. The rain was the type that normally floods the roads and walkways (probably would have wrecked my basement). But the water kept dissapearing. It hit me, as I looked around, that DTD was built so carefully to drain water. Now, I may be wierd in finding that interesting, but perhaps you'll find something that excites you that many people don't understand. You can't find these things when you're on a commando schedule.
But the best reason to not commando: We've found as we relax, take it easy, and slower, the vacation just seems to last forever. Note: We still seem to get as much done. I never miss certain things, and I see most of what I used to put on my carefully sculpted schedule. But in not obsessing about a missed attraction or two, I'm just finding the vacation longer and more enjoyable.
Try it!
Pat
Because all I did was answer the OP ? She asked for people that have changed their vaacation styles and we did, so I shared my story. 
