okay so from what ive searched up, hdmi standard was a collaberation between hitachi, panasonic, maxell, philips, silicon image, sony, vantiva, and toshiba. Furthermore it “won” the support from a lot of entertainment companies like universal, warner, and disney.

;_; so basically, even though they came together to make a universal system, they spent money on it and therefore need to make the most out of it. All other manufacturers just follow along.