The one time I hate Ann Arbor's no-Walmart policy.
Actually, don't. My experience with Wal-Marts and HD material is a sad one.
Most Wal-Marts don't have these titles in stock. First of all, the saddest story is that the biggest selection of HD movies in a Wal-Mart I've seen so far has been at my hometown location in London, KY. Since I detest this Wal-Mart, you can only imagine the horrible selection that is there. There is only one small case, split down the middle between Blu-Ray and HD-DVDs.
Most Wal-Marts only have maybe two or three Blu-Ray movies (the most popular releases), and you are lucky to find an HD-DVD. The Richmond Wal-Mart, which is a pretty big location, does this, as well as the Berea Wal-Mart, a smaller supercenter store.
Good luck finding these titles to purchase, that's all I'm saying.