First store where you bought your gaming supplies. Does it still exist?
Considering I haven't been gaming for quite as long as some of the other people participating in this, I don't have an older store or anything. The first physical store I bought stuff from for the first time was a gaming store in St. Louis, Missouri where I bought my dice bag, an a few gaming books for my kids.
Considering that was only a few years ago I'm assuming it is still open although I am not completely sure of that as I don't remember the name of it to check and see.