There is always someone making more than you who struggles with money and someone making less than you who lives just fine.
Most of America could get by spending $13000/yr on housing/utilities, $6000/yr on food, $2000/yr insurance, $2000 day-day-supplies and $7,000 transportation, so say $30,000 after taxes. And that would be a nice home, and the food, especially if you cooked meals at home, would be high quality.
So a $45K job in most areas for a single person are going to be enough, more than enough really. If you want an iphone, or hbo, expensive vacations or a bmw, you have to make choices and sacrifices. And people often lead happy, fulfilling lives making less than $45k and making different choices.
But the thing is, while luxury goods can sometimes be of dubious quality, in most cases, the value is there because you are getting a superior product. And superior products are deservedly expensive. They require more time, higher input costs, increased labor, better employees and so on. If I am a furniture maker, and I am good at my craft, make a great product that lasts a long time and offer excellent customer service, Hancock & Moore, for example, I should be charging $3000+ for a couch. Now if you are making $45k, that high level of good is usually going to be out of your price range. You will be more inclined to shop at ikea, or a thrift store or take a chance on an internet furniture company. Any of those options will certainly get you a couch upon which you can sit. And certainly nobody needs a $3000+ couch. But then what are you saying on the supply side?
Should no one be making nice things? Should a furniture maker not be making the best possible piece of furniture and providing excellent customer service? Certainly those in the upper income need to make sacrifices, but luxury goods do not imply garbage, just with a higher pricetag.
Is the cutoff $250k? Is there a cutoff? Maybe that isn't the issue, but it is disheartening to see people attacked if they want to buy nice things. Because those nice things, when they are well made, produced by competent people, and built to last, deserve to be purchased. There should never be a stigma attached to quality goods.