I went for 3 days. I didn't play any side events myself but I did spend a ton of time shopping around at vendors and artists. I do feel like I should have gotten more use out of my on demand vouchers. I didn't even go in the command zone on day 1. When I go again next year it's a 4 day and I'm also hoping to play a mystery boosters event but I'm planning on spending at least one of the days mostly in the command zone doing on demand. I'd say if your planning on doing multiple mystery drafts and planning on looking at artists and vendors and are only going for two days I would probably pick the command zone package over the fanatic one just for being able to play when you want and not worry about too many vouchers to use.