I have personally bought several $5 Pi Zeros. In fact, I’m pretty sure I’ve also bought at least a half-dozen Pi Zero Ws for $5 from Microcenter (pre-pandemic), even though their MSRP was $10 at the time. I distinctly remember them being super cheap, but also limited to one per customer (per trip) at that price, so I’d just pop in and grab one any time I was near the Microcenter.