I skipped 6th grade and I'm still glad that I did so. I spent years before in school just being incredibly bored. Some years, I would write plays for my fellow students to perform, sometimes I would take "advanced" math, but I just felt like I wasted a lot of time.

I wanted to skip my senior year in high school as well, but my parents wouldn't let me. I have to say that I'm glad they didn't. I actually enjoyed that year a lot. One of my favorite classes was a humanities course that was rather unique. We had a team of teachers and would study the music, art, literature, and history from a period in time and gradually marched our way forward. It was great! Also, in college, the only humanities course that I took was science fiction, so if I hadn't taken that course, I would have missed out on a lot!

At least for me, skipping grades isn't about an "ego boost" it's about time. It's the same thing with AP courses--some people say that they aren't equal to college courses, but if you take them, pass, and the school accepts them, then it saves you an incredible amount of time.