OP-can’t you ask this same question for most things in life? How about a house? Is $300k for a house good enough or is the $800k house better? How about cars/trucks? Do you like a cheap Sentra or want to move up the chain to a Porsche? Both will get you to work, but there is a definite difference in quality.
Same can be said about audio. You can buy a cheap system and think it’s the best thing out there. But we all know that spending more money (it can be a few thousand to tens of thousands) on the finer things in life will get you something better than going cheap.