Adafruit.com has the Zero W and Pi4 1GB and 8GB at MSRP, and I wasn't aware of big shortages of the OOS models (2GB and 4GB). They just come and go. There is

Adafruit.com has the Zero W and Pi4 1GB and 8GB at MSRP, and I wasn't aware of big shortages of the OOS models (2GB and 4GB). They just come and go. There is a qty 1 limit for the available pi4's right now though, which has not always been in place. The Zero and Zero W have always had a qty 1 limit everywhere, since they are sold at near breakeven or at a loss. Try also sparkfun.com. Sparkfun and Adafruit both have a "notify me when back in stock" feature where they send you an email if and when the item becomes available. That works pretty well. If something is in short supply it tends to sell out fairly quickly (like within days or hours), but it's usually not so intense as to sell out within seconds. So if you check for the item as soon as you receive the email, you can usually get one.