Yes, people should right-size their spend and effort to their goals. I'm thinking of the scenario where the person actually had an intent to have "good" quality

Yes, people should right-size their spend and effort to their goals. I'm thinking of the scenario where the person actually had an intent to have "good" quality and spent more money for what they were told would "look better", but due to inaccurate information sources (eg salespeople, buzzwordy feature bullet points on signage, friend, etc) they don't end up with what they thought they would get (and paid upward for). The frustrating part is there's no fundamental reason they couldn't have actually got what they wanted instead of being mildly disappointed that their extra $500 spent "isn't really as different as they'd hoped". Yes, there's a point of diminishing returns beyond which more money buys things that don't matter (like 4k resolution vs good 1080 when the viewing distance-to-screen size makes the difference optically negligible to human eyes). However, under that point of contextual diminishing returns, a little bit of on-point knowledge or information can really maximize the return on incremental spend and effort.