It's like a gambling addiction.
If you play it smart you can set a goal for something you really want and keep trading " up" until you obtain what you want but this requires patience and time to wait for that person who wants what you have to sell.
There are plenty of people who have started with basically nothing and ended trading up for items worth thousands just by having steadfast patience, but trading is addictive and impulsive.
I've had a few guys have buyers remorse as I was handing the product over to them....I could see the pain in their eyes and asked them if they want to back out with no worries...( not many people will ask that.), but they always went through with the deal because its what they wanted.
Exactly like a gambling addiction (I wont mention how I know). I see what I want and go in clear headed the addiction kicks in and I throw what I have out too cheap and buy too high but in the end I get my toy that I will sell at a loss.