Yes, it's always interesting to see how other people choose to spend their money. Part of the fun is being judgy about it, I suppose. I enjoy those 'Spend Well for Less' and 'Spendaholics' type tv shows, but I suspect some of the enjoyment is not having to address your own money wasting because you can say 'At least I don't have 14 takeaways a week'.
Cars and jewellery are prime examples. If someone wants to prioritise those because they give them pleasure, and they can afford to, it's up to them really.