I don't think you could get better results from cold calling; at least if you're networking properly.Good point! It does raise the question of what it takes to be "networking properly." To me, you'll get better results from networking after you've spent a couple of years consistently attending events where you see your target market. You'll need to encourage and reward referrals, and you'll need to have given more than you expected to get.
At point, I think you'll find that networking "suddenly" becomes one of your most valuable business tools.