I started casually playing around 2011 just did 1 draft to see what that was about. Around 2014 I started drafting regularly. Then my local LGS did this 1 day pre-con commander league. Wanting to try something different I gave it a shot and was hooked. Yet there wasn't a commander group yet at my LGS so I kept drafting with a small splash of standard. Then 2 fellows started playing commander on Thursdays until it developed into a commander night. Then I joined into that group and have been a fan since. I do on occasion do a pre-release but only 1 compared to the 3-4 I used to do. The reason behind the attendance climbing for commander is what other format can you play mutliplayer besides casual play. Commander format there is no meta to follow, no high strung tournaments, no paying high dollar for cards so you can compete and so on. Anybody can play it and new players/old players get pre cons so you can join in a game with pennies on the dollar. You control your own destiny, if you like X for a commander then you can play X. Make X do whatever you want it to do. To me it such a relaxed layed back format with great socialization compared to the other formats. Commander gives you 0 pressure and with an unlimited pool of cards you can do whatever.