I was in Knoxville, TN today, and I went by a couple Sears to see if I could find anything. The first I went to had a bin of the clearance games, which had a couple Muramasas, Wolfenstein, and a few other "good" titles. Otherwise, the cases were dried out, so I left empty-handed. The other one was completely different, though, and had the worst layout of a retail store I've ever seen for the games. Instead of having one rack for each game and putting the rest on the bottom, they were thrown pretty much wherever. If they weren't in cases, it would be one thing for me to shuffle through them to see what I could find, but I felt like too much of a dick to make the old guy with the key let me sift through all the games I couldn't make out very well.
Anyway, I DID, out of the corner of my eye, manage to catch a FFIV DS at the very back of a rack of DS games, which rang up at $5. I'm pretty happy for finding it at that price.