That highlights the point where amateurs just see the latest, greatest and most expensive gear as the best.I could have stated it better. If you're not seeing improvements at a level that actually matters with more expensive and much larger gear, then, IMO, you're using the best gear possible for the job. If you're getting complements on the results by pros, and they're comparing your work to everyone else in the same field, even those using much larger and more expensive cameras, then you probably are using the best gear. The best gear isn't necessarily the largest and most expensive. It's the one best suited to what you're doing.
Once any of them, if ever, transition into paid work, they quickly discover that what they thought was the best and what they wanted or could afford, were completely different concepts.
When you actually have to run a business, factors other than having the 'best' gear become far more important in order to survive.