I'm not playing devil's advocate here, but.... the only time any of my dogs are crated is when they travel (by plane).
I allow my Basenji free reign in the house. She has two "spots" that are exclusively hers. One is a huge, 2x4 foot dog bed tucked into the corner behind her club chair/ottoman. Yes, she has her own club chair, and she doesn't particularly like it when I borrow the ottoman. She is allowed on my bed at any time, but she is not allowed on other pieces of furniture unless invited. And she understands the rules. When I leave the house, she curls up on my bed, often with her head on my pillow, and sleeps. The minute the key is in the slot, she runs to the door. Man, I love this dog!!
I suppose I just find crates unnecessary. Doodle can move about the same as anyone else in the family. And I can trust her not to do things that she shouldn't do. Even if I'm gone longer than usual.