I would love for someone who knows more about this to also explain to me why goods sold on Amazon, which 20 years ago would be something I need to replace once

I would love for someone who knows more about this to also explain to me why goods sold on Amazon, which 20 years ago would be something I need to replace once per generation seem to universally break within 1-2 years. That's better than what I have been experiencing. About half of the stuff I buy breaks right away. I leave them 1 star and comment on what happened. Amazon approves the reviews to my surprise. Some of the vendors will physically mail me a card offering $30+ for 5 stars. I find it interesting they are able to send me physical mail. I would avoid Amazon but I live in the middle of nowhere. That is one of the trade-offs I accepted by moving here. I try to utilize the local stores as much as I can.