Are there perks aside from just avoiding their extra fees? I remember last time I was at AMC they added a charge on at the snacks when I said I wasn't a member
They don't add extra charges for not being a member for snacks. You get free upgrades and get a special line for concessions. So worth it if you get concessions normally ever, not if you don't. I think they also have another tier up that gives you 3 movies/month but I have no idea what that costs.