For a large part of 2021 the 3080 was selling for as much as a 4090 does today with the 3090 going for around 3k, it was AIBs/ distributors and retailers making most of the money though as they had locked in bom costs pre mining boom, this is why 3080 production was cut by Nvidia and dies were switched to the higher margin 3080 12gb / 3080ti which diluted 3080 sales.Nvidia care about revenue. Whats the price of a 3080 and a 4080.
If you can sell something for double, and not halve your sales. That's a shrewd business move.
It's also misleading as they ended up selling way more 4090 cards for an even higher price (0.90% share). Compare that to the 3090.