They've been selling and trying to prove LED lights since mid 2000s, hard core btw.
Convincing us that LEDs were = to the HID equiavalent (I'm talking industry folks, you know the distributors that support the hydro shops that stick their name on some asian contract manufacturers equipment and call it hydrofarm or other bullshit)
Nevermind that they don't see the margin in the fact that COBs are very expensive right now... nevermind that their business model is profit driven, not quality cannabis driven.
I think those of us in the latter camp, that have made a move or at least an attempt at seeing what these COBs can do are not so much worried about our name on a light to make some money (well maybe not all of us), but many just want the most efficient, efficacy, quality etc.