Genealogists with some experience under their belt know that everything is not online and that everything is not in print. They also know that networking will only get you so far--it's great for connecting with people who may have ideas that can help you, people who may have specific expertise, or people who may have access to difficult-to-obtain records. Networking usually doesn't eliminate the need to do actual work. Remember--no one is as interested in your ancestors as you are.
I'm not certain genealogy networking is over rated. What I am certain of is that we all need balance.