And Larry, that's the issue with any public school district in Texas for me.
But on the other hand, I think you get a set of experiences in public school that comes from being exposed to the broad sweep of your community that you don't get in private school. My wife hates it when I say this, but I don't want my kid going to Hogwarts, either.
I don't think it is a waste of money to send my kids to private school. I live in a good suburban school district, but I want to give my kids the best education I can. At their private school my daughter has smaller classes, more individual attention, and a better overall environment than she would have at our neighborhood elementary school.
I understand the concern of breadth vs depth in teaching in grade school, it worried/worries me as well. That said, and I realize I am speaking from limited experience and also about a particular school that may not be an accurate reflection of the whole district, but here is my piece:
I have first grade twins at Doss, and I am shocked by how advanced the instruction is/the personal attention my kids get. Their classes have about 21/22 kids, but their teachers really an amazing job of tailoring the teaching to the levels of the kids. As a small example, my kids learn 20 spelling words a week, including such words as "diurnal", "nocturnal" and "hemisphere"--and not only how to spell them, but what they mean. This is not meant as a brag--my kids are so smart post, but just an example that even in a district as large as AISD, I truly think you can get an excellent education, as long as the parents are involved, which I don't think is a problem with those posting here.
That said, it is a very personal decision, and I don't judge those that send their kids to private school--I am very lucky to live in a neighborhood with a great public school.