I went to several recruiting events with several friends that ended up joining. Best decision of my life was not joining. A couple that joined regretted it. They made good friends but you can make same good friends in dorms and your classes. Don't need to pay to get friends and spend time at meetings.
I actually did not join a frat after going to recruiting events either, but I don't think people should be knocking a guy who wants more information about the frats. If he ends up not joining one that is his decision.
I was more putting on shame on the guys that called out the greek system and didn't back it up with anything. You added a personal experience so I would not throw you into that bucket.