[ilyt]

Still need to pay up if you want to sell zigbee devices

https://e2e.ti.com/support/wireless-connectivity/zigbee-thre...

...which is also the reason Zigbee is more pricy than random wifi enabled gadget

[Tijdreiziger]

Zigbee can’t be that expensive, since you can pick up IKEA TRÅDFRI Zigbee bulbs for around €6 a piece.