When the Rothschilds stop stealing our money, when the Rockefellers quit doing things that generate "necessity expenditures" such as medical bills and monopolies on energy sources, when Monsanto quits trying to monopolize food, we might be able to do with much less. You need a steady pay toilet paper so you can buy those ongoing things. It's not as if we could grow our own food, live in our own homes without being hassled by the Rothschilds trying to tax us to death in it, treat our own diseases without Rockefeller interference, and make our own stuff to barter and trade.
And stuff is not just for "show". Sometimes "stuff" can make what would have been a disaster become a minor nuisance. Last night, at work we had a blackout and I had "stuff". I had a Fenix HP20 headlight--we knew there was going to be a blackout because it was for maintenance. Others had wimpy lights or none at all, and they ended up wasting a good 45 minutes extra even though there was a generator, trying to work with limited light. Suppose the generator went dead--they do about 25% of the time. Those without "stuff" would have been up sxxx creek without a paddle, in a barbed wire canoe, while I would have been able to work just fine. Getting toy flashlights off the shelf would have wasted more than 2 hours of time while I would get my work done with a minimum of nuisance.
Also, suppose you are in a big store, and abruptly the lights go out. The generator just happens to be dead. You are not that familiar with the store, and you are near the rear or in the middle. Would you rather have a nice flashlight such as the Fenix LD22 (which happens to be quite expensive) powered by Sanyo Eneloop batteries (also quite expensive), charged by a fancy (expensive) charger you buy once? Or, would you rather be dependent on security that might be more bent on imposing martial law or tied up elsewhere? Or in pitch dark? Or, accused of stealing the Energizer light that they happen to carry, because you happen to have one paired with a common Energizer battery that they happen to carry (and there always seem to be at least one pack of, with one battery missing)? A showy display of one's means of life suddenly becomes a means to reduce what could have been being detained, or seriously hurt, into a minor nuisance (you don't get to buy what you went in for).
Besides these sometimes necessary things, fun is also a practical necessity. Granted, we might be able to survive without it. But, proper spiritual development requires a certain amount of fun. Children in particular depend on fun to learn. They learn that they have more fun when they work with nature, even while playing with toys, and they learn what those laws are. Take away their toys, you take away that opportunity to learn. And I find it more appealing to live with decorations that are appealing to me, rather than in a stark bare apartment.