Did you know we had our own minor league baseball team right here in brooklyn?
I've been to 2 games, and each time have had a blast. FYI--I'm not even a baseball fan! But, the cheering crowd, popcorn, and sing-a-longs made for a very fun evening. Plus, the stadium is brand new, it's easy to get to by subway or car, parking is ample, and you're right in coney island, where there's the beach, boardwalk, mini-golf, go-karts, etc. I'd recommend you venture out--it surprised me how entertaining the whole experience was.