I posted a long list before https://reddit.com/r/glee/comments/z0t004/comment/ix7obow

I want to add: There is a lottery at Broadway, I never read details, but you can won a possibility to buy tickets for much cheaper, I'm not even sure exactly how it works. And I have a headcanon Kurt singed up for lotteries and won multiple times when he was still a student. Especially I think about the time when he and Rachel were living together. I think he was amazing in finding cheap tickets etc., where to sing up, where to go. And thanks to him they went at least a few times to see shows on Broadway and paid much less than regular prices. He said about his Broadway Playbills collection in PUC - maybe some of them he bought online, but some he got when he saw the shows.