It's only not true because once you have money you're instinctively driven to advertise that to other people, meaning you'll spend money on items that say "I can afford these". But I certainly know of people who incorporate "buying well and buying once" into their general financial strategy and do well out of it. However I disagree it means they spend less time on things - even expensive well-made items need time invested into their maintenance to truly last (something I acknowledge despite being woefully bad at looking after almost anything I own).