I usually just read, but I had to create an account to respond to this. I took my daughter to the Cover Girl Classic last year. We purchased seats the day of and ended up right along the floor, near the bars. She was super excited about this because we had a great view. During warm ups, any time Shawn Johnson or Alicia Sacramone would be anywhere near our area there would be about 40 girls and their parents swarming the area in front of us screaming for autographs and trying to catch their attention.
Then, she couldn't see Shawn Johnson compete bars because those same people were all back standing in front of us when it came time for her to compete. She also missed one of her personal favorite gymnasts compete bars because the meet was pretty much over and a gymnast (can't remember who, sorry) made the mistake of signing an autograph and boy did the flood gates open after that.
It was unbelievably frustrating and my daughter was very disappointed. So, my advice is to be aware of and fair to the people around you who purchased the more expensive tickets (and if I remember correctly, I was surprised that they weren't really all that expensive).
It was our first big meet and I will definitely purchase tickets for an upper level this year.