Does anyone not know someone who struggles with money, let's you know they do, and then turns around and pulls out the latest iPhone 6?
These are the trade-offs we make.
Having money is all about having options. But even if you're Sir Peter Jackson you still have to make trade-offs, since the funds you sink into something could possibly be better used elsewhere.
When you're making money decisions, it can help to think about all the other things you could be doing with it. It was somewhat startling when a friend looked down at the drinks on the café table where we were sitting and said, "For the cost of this I could make dinner."
Now, some trade-offs are certainly more stark than others - like if you had to skip buying groceries because your car needed emergency repairs. But everyone has their choices to make.