you guys need to lay off the Sony Coolaide you don't NEED HDMI...
I guarantee the only difference you'd notice is the 5 extra second you have to wait for your console to boot up while it makes the "handshake" and a substantially lighter wallet.
if you've already got it, great, use it but for the most part there is no reason to use it unless
1. you've got an HDTV with a native resolution of 1920x1080 that does not accept 1080p over component or VGA
2. well there really is no other good reason...
Aside from that, HDMI is nothing more than a DRM trojan horse that helps you with cable management.
HDMI is the automotive equivalent of a tilt Steering wheel, you wouldn't exactly up and sell your car if it didn't have it now would you? If you've got it, great, use it! If not... it's really no big deal and it's more of a "nice to have" than anything else.