I won't comment on the Campy stuff, as I have never ridden with it. By reputation it is great stuff, but I know it's not cheap.

The difference between wearing bicycle shorts and not is I think larger than the difference between bicycle short and bibs. Getting into a pair of shorts designed not to chafe while riding is big. I prefer bibs, because they are more comfy and never slide to threaten to give a view of the so-called "carpenter's crack." But, I think one could prefer to go without the bibs.