I've been to a bunch of competitions without my team so I know from experience how interesting that can be when you don't have that bond & group of friends to be a part of when your team is there.
My bast advice is to sign up in VIMS to volunteer in some way while you're in Atlanta.
Being part of a competition from another perspective like volunteering is one of the most interesting ways you can see a competition.
Oh, & the free meals don't hurt!
But seriously, there are a ton of positions to fill in Atlanta, & while not all of them are glamorous (not everyone can be an MC or work on Einstein doing field reset & chill there up close & personal during the finals) all volunteer positions are critical to keeping the weekend running smooth!
Try it out. You'll enjoy it - I can almost guarantee it!