and HDMI only appeals to a niche.
HDMI is the interface of the future, if your console is gonna last 5 years and your not thinking about getting a new TV (and it wont breakdown), reciever or whatever in those 5 years cool.
HDMI is one of those "future proof" things that sell stuff, "and here we have the 1337 360, it features HDMI which is the standard for all new TV´s today and in the future, and you will need it for the new sound formats".
And on a sidenote, HDMI is fantastic compared to the old school component,Scart RGB etc. I got a 10 meter cable for 50$, it takes up no space compared to the old shit and it supports 1080p over that lenght as well.. nice nice