It depends on the use case. I have several I put around the house with sensors for IoT stuff. ESP32/8266 (and newer) devices would probably be less expensive since they don't need an SD card but are more work to program. The Zero has a full OS with dev tools built in. But for running a desktop, they're not so good.
They're not as cheap any more at $15US for the Zero W. I miss the days when Microcenter had them on sale for $3.14US on Pi day. They did recently have them priced at $10 to celebrate the grand opening of a new store.
They're not as cheap any more at $15US for the Zero W. I miss the days when Microcenter had them on sale for $3.14US on Pi day. They did recently have them priced at $10 to celebrate the grand opening of a new store.