You know what's weird? I went to 2 different stores yesterday looking for Kool-Aid or a reasonable facsimile and I couldn't find it anywhere. Do they still sell this stuff?
ETA: My quest is complete! I returned to the store this morning and since a lot of stocking was going on, I was able to ask someone where it was. It was next to the popcorn and cans of mixed nuts. Of course! How could I have possibly missed it? Thanks everyone for encouraging me not to give up! :D