I don't think Matter will add to price; for many devices, I suspect the opposite. The open-source Matter implementation (disclosure: I worked on bits of it) has

I don't think Matter will add to price; for many devices, I suspect the opposite. The open-source Matter implementation (disclosure: I worked on bits of it) has wide support from silicon vendors. JoeBulbCo will basically be able to pick from a selection of high-volume ICs, run ‘make’, and ship it. JoeBulbCo competes on how good — or how cheap — their bulb is.