I also wear one Christmas shopping/any large shopping trip and anywhere I don't want a purse knocking things over-getting in the way. Basically any hands free location.
One quick plus for DVC that has nothing to do with cost/savings etc. I know in another post you said you had three kids. If they aren't all the same gender, I would recommend DVC on that alone for when they get older. You will need the space. They don't generally want to be in the same room together and two or more TV's is always helpful. My girl and boy are 21 and 17 and we have been members since 2003. It makes a huge difference.
Trust me - You don't have to sell me. We just got back last month from a 1 bedroom villa at the Boardwalk. It was heaven having all that space.
I love the DVC 1 bedrooms. By far, my favorite room I've stayed at in all my Disney trips is the 1 bedroom villa at the Wilderness Lodge. That room was absolutely stunning, and exactly matched my idea of a perfect theme. We've stayed twice in a studio (Old Key West, Wilderness Lodge). While the rooms were nice, I saw no real difference between them and a regular room. They can't compare to a 1 bedroom.