With all due respect Gene - how can you even compare experiencing something LIVE (esp. with such a charismatic frontman as Phil is) and seeing/hearing it on your A/V equipment ??? Even the best rigs/cables/HD audio technologies cannot come even close to reproducing the MAGIC which you can experience by actually being there - in person, and (maybe even more important) among other fans, who feel the same way ...
I agree it's good to have concert DVD, play it on the great equipment, but only as the substitute (when you couldn't go) or reminder of the concert which you've actually saw in person.
My concert-DVDs collection is growing (about 60 titles right now, 1/2 of them I saw in person
And believe me, I feel such a thrill when playing for example:
Genesis "We can't dance tour" DVD
OR Peter Gabriel's "Secret World tour " and "Growing Up tour" DVDs
OR Roger Water's "Wall in Berlin" and "In the Flesh Live"
OR Pink Floyd's "pulse"
OR Steve Hackett's ...
OR Yes' ...
OR Pat Metheny's ...
etc. etc. etc ... ONLY, because I actually was there, felt it, belonged to the mesmerized crowd of the fans like me ....