But, to some people, having expensive things, gives them great pleasure,
and others might want things because, they want them for no other reason than that, they can get them and afford them.
BTW, that's part of the free market system, where people are free to get what they want, whether they need them or not.
Why does anyone need a 10,000 square foot home, or even a 5,000 sq. ft. home? Why does anyone need an SUV or the most powerful PC in the world? Why does anyone need diamonds or gold jewelry? Why does any woman need to get a very expensive wedding dress? Chances are that, people don't really need those things, but, to many, it's pleasurable, and makes them feel powerful,and envied, and looked-up to.
If someone can afford a 200 inch HDTV, then, it's a huge amount of money whick will get "redistributed" through the economy, instead of just sitting at a bank account somewhere collecting interest for the account owner only.
If you have it flaunt it, and it works its way through the economy.