During reloading component shortages, the responsibility for acquiring new components falls on the reloader. In order to locate and order the necessary components, it is imperative that one takes advantage of every tool in the box. That means checking a number of online vendors every day, or even several times a day, if necessary. It means checking with any local supplier that might get some in. It means checking threads like this one several times a day, or others here at Accurate Shooter such as the one entitled, "Primers in Stock" in the Reloading forum. Primers are slowly trickling in to a variety of different vendors. I was able to purchase some CCI BR4s from Bass Pro Shops last week following an "In Stock" notice in the "Primer in Stock" thread. Bass Pro Shops also got in some CCI 400s a few days after that. Scheels has also had CCI 450s in stock recently, but that required a phone call to the store to find out. I have also purchased primers off of Gunbroker in the last couple weeks, paying approximately double the going cost before the shortage. That was not great, but I could, so I did. I also unexpectedly happened across some H4895, which I hadn't seen in some time, that surprisingly went for what I perceive to be standard cost (i.e. no ridiculously high mark-up). There are occasionally individuals selling primers on Gunbroker that aren't charging an exceptionally hideous markup, but you have to look through several pages of items that come up when you limit the selection to items available with the "Buy Now" button. Again, it requires some footwork and diligence, but if you really want them, they can be found.
The bottom line is that primers are out there, but it will require some diligence on your part to find them before they are sold out. The good news is that as more shooters such as myself obtain what they need to last for a while, they will not order more as the components become available, freeing them up for those that still haven't found some. Those intent on scalping primers will likely not stop buying them up. However, as others find what they need, the scalpers may well find themselves loaded up with primers that no one will purchase at grossly marked-up prices as the shortage eases. So keep the faith, do your due diligence, and you will find what you need if you really want it badly enough.