High doofynition

Networld-Interop is just a couple dozen hours away. One thing I'm quite interested in is High Definition video conferencing. This is regular video conferencing, but in Hi-Def, like TV. A number of vendors have recently announced this feature, although I'm wondering if it's really useful.

When I think of video conferencing and reasons for people's reluctance to use it, high definition isn't on my list. I haven't even been sold on HDTV yet. I've noticed that no store or location promoting HDTV has done a side by side. What I want is a demonstration where a HDTV is on the left, and a standard TV of similar quality (a mid-level HDTV vs mid-level traditional TV) is on the right, and I can see the difference. I'm hoping a vendor at N+I will do that demo.