I've been to 3, no calls for interviews. I guess it's just your point of view. For every guy who never goes to a job fair and gets hired, there's a guy who went to multiple without a phone call. Then there's the folks who went to the job fair, hit it off and swear the job fair was the reason for the interview. If somebody figured out the formula they could open their own business that taught you how to get an interview and the owner would be a millionaire in a week.