Yes go! I haven been to Disney with family about 40 times. This past Feb I went for 4 nights with a girlfriend to run the princess half. I was worried about missing my family and the guilt before was tough some days. I Loved It! It was amazing to have zero responsibilities for a few days in the world. I even sat at the noodle station with a drink and people watched the castle. Dinner in places I wouldn't take DD6, no backpack/stroller etc. I don't expect to do it again for a long time, but glad I went!
I really like the thought of zero responsibilities for the week! I am sure you had a blast. The more posts I read the more I am leaning toward committing! If I do go that means I will be able to skip Race Track! Yay!