I suspect that audio recording using digital cameras will improve to an acceptable level (relative to your tastes of course), though never reach the level of dedicated audio recording gear. The thing is, this may actually help us convince artists to let us record in the long run. When devices get more ubiquitous, the attempts to ban them become more futile and even silly. Try banning cameras now. Every other cell phone will take pictures. Not great ones but they can get something usable. Those photos are all over MySpace. Many do a fair job of capturing video, given their limitations. Those videos are all over YouTube. What are they going to do? Strip search people on the way into a show? Have a roving goon squad throwing out anyone who holds their cell phone up? No, they will give up. Now you can record a reasonable length show on your digital camera. The sound will be a serious compromise but far better than the days when folks recorded shows on cheap portable cassette decks.