Tournaments are the only way for players to get a consistent feed of information. You have access to the rulings the judges made, you have everyone's army lists and how they fared against each other. When doing an analysis, you need consistent, reliable data. A friendly, fluff game is not going to give you that because it is not going to be documented. My group does not keep up with win loss ratios, rules issues, statistical data. Does your group?
I'm not trying to be rude or argumentative. I just think your bias against competitive play is clouding your judgement. I myself avoid competitive play like the plague but it's the only source of reliable, documented data we have.