I don't know if I got lucky or not, but I went into a MicroCenter, because I burnt the RPi 4 I was using for a hobby project and they had the RPi 400 kit in stock. They somehow had one loose RPi 4 2GB. MicroCenter will only sell them in store, it seems.
I just hit MicroCenter with my daughter to build a RetroPie this weekend. They would only sell one per household per day (this was in Georgia). I would've bought a second if it were allowed.