That's worth way more than monetary value. Go to the game and have a blast!
If it was you and your wife or some buddies or something like that...I'd absolutely say just sell them. That's a massive spike in prices. But given that it's your kids, I don't think you'll regret making memories during a special season like this (let's be real...when are we going to have another season like this?).
Unless your kids are older and are already 50/50 about wanting to go