Only went once a month because my wife made me go, and to have a token number of hours. I resented losing my one day a week to sleep in and have a day off.
I also saw how fruitless the effort was, and how inefficient it all was. Would spend over 3 hours from when we started getting ready in the morning till we got home, and talk only to a handful number of people at most.
Many times we would work with another couple with kids so we could do return visits, and take a very long break, and still count 2 hours.
What a waste of time.