[ghaff]

In my case, it's not so much saving days or weeks of my time. Rather, it's being able to answer someone's quick question, direct them to someone, take a quick look at a doc and say it looks OK (or make a quick edit), etc. I don't feel it's something I have to do--and I'll only rarely do something that requires more effort--but it often seems like a pretty good cost/benefit tradeoff.