Simplicity is hard. Let’s go shopping
I tend to use the "inversion" argument, but mostly with vacations and not physical stuff:<p>"We should go to Barbados for a week. It's only $1000."<p>"If someone offered to give you $1000, <i>plus</i> an extra week to accomplish stuff you want to do, wouldn't you take it?"<p>This works with appliances, too: <i>not</i> buying that juicer means getting a few square feet of counterspace <i>and</i> $100.