You and everyone else. I haven't found any in stock anywhere in months and I had 11,000,000 notifications set up through every online retailer I know of as well as reloading search engines like ammoseek.
If you want SRPs you're going to have to cough up around $.25ea unless you get really lucky. I suspect at my local gun stores either:
1. Employees take the few primers that get delivered and keep them/sell them
or
2. The owner is posting them on gunbroker himself.
For a little while I could get lucky and find them locally here and there for around $.05ea. That ship has sailed.