Thank you for highlighting this — I hadn’t realized how far the lower end of the price range had advanced since the days of cheap Pro Micro clones. 240MHz, 2MB ram, 4MB flash, circuit python —- this is incredible for $12, and from Adafruit no less!
those are 1.6¢
Mix in some I2C components and a few jumper wires, and you basically have my whole childhood distilled down and reborn -- legos and code.
Plus ESP32 has a huge ecosystem of software and hardware, the same way the original big Raspberry Pis are much easier to develop on. Pico ecosystem isn't nearly as big.
https://rp2040pio-docs.readthedocs.io/en/latest/
An ideal board would have an RP2040 as the USB terminator (where it can be a usb mass storage device for dragging and dropping firmware) and the ESP32 can handle the radio.
ESP32 is on the order of 1.05-2$ each and the RP2040 is 0.70