It would be really great if they made some in adult size. The princess pull ups are really adorable, though I know that anyone making these for adults likely would not be able to use Disney. They could still do some generic princesses. I really wish they could make something that looked and felt like the real thing.
Perhaps pull ups appeal to me so much because I only have one or two real memories of wearing actual diapers, while I have several of wearing pull ups, as I wet the bed pretty frequently until I was nearly five, though I never got to wear the ones for girls. I know that a lot of older people on this site prefer cloth diapers because that's what they remember from their early childhood, so maybe that's why pull ups appeal to more younger people who grew up with them.
Also, my "little" fantasies are in the age range of 3-5, rather than infancy. I'm more of a coloring book and sippy cup fan than high chairs and mashed food. Pull ups work better with that age range, in the midst of potty training.
I never wore Goodnites, though they appear somewhat similar. I'll have to try and see if I can fit in them sometime.