The RP2040 is just over a dollar and there is nothing else of value on Pico so $4 retail is a bit low (typically you have 3-4x bill of material) but doable. OT

The RP2040 is just over a dollar and there is nothing else of value on Pico so $4 retail is a bit low (typically you have 3-4x bill of material) but doable. OTOH Zero is $5 only because it's effectively subsidized at various points in retail chain. Pico W must be cutting it close at $6. Edit: typo