One of the things I like about our hobby is that folk can choose to spend as little or a much as they like without a huge gap in performance. Whether you like them or not a large part of this is down to the Chinese clones getting better quality, a great example of this is magazines, 20 years ago a single AEG magazine was around £30.
It's from a neurotransmitter called Dopamine.
https://www.webmd.com/mental-health/what-is-dopamine