I agree with you. I find that the amount of enjoyment I get out of the thing doesn't change, I just now need more a expensive thing to get the same amount of enjoyment.

That's why I choose to listen to music on my cheap $100 speakers that can still give me goosebumps and not listen to my friend's $5000 speakers. All that would happen is that I'd lose the goosebumps because I'd notice how shitty mine are.