[livius]

Lol! These “huge” debts were the cumulative results of 10 years. He put home repairs and even remodeling and all sorts of expenses on
the cards (for the rewards and miles) and then paid it off. Many people do that habitually because you can get substantial rewards from your cards.

[susannah59]

Exactly! I suspect that he paid for the tickets with his card so that the group could get seats together and also because he had a card or cards with good rewards- airline miles, hotel points, or other rewards.

I've done exactly that, traveling with a friend. I put both our hotel rooms on my card since I got points; she paid me back.

If season tickets are high-dollar items, it would have been rather foolish to have passed up the opportunity to acquire rewards.