I don't think anyone thinks 3G is a BAD thing, but I think your need for it depends alot on your location. I don't have any 3G access here, so it's not going to do me any good for a long time. Once 3G is more available, or if you are lucky enugh to live in a 3G supported area, I think it will be a no brainer...
I can certainly see why those of you who have 3G availability in your area would want a 3G iPhone ASAP!