For a football game, I would never invest more than 250usd in a ticket to watch a game of less than an hour. If I were the person who is going to spend more than 10000usd, I would think twice, because this is a large sum of money, with this you could better investment could be made with which a profit could be obtained. On the other hand, I think that in my life, I have never invested so much in a ticket since I have never seen them relevant because sometimes you want to meet the artist to take pictures with them and a concert is not the best option for this purpose .