I’ll just share my perspective on why I like trading.
First of all, I was a d2 megafan back when that game first launched, yes I’m a boomer by gamer standards lol.
Anyway, back then I just loved the item progression treadmill and the authentic treasure hunter feeling of the game. Even back when I was a total noob and found my first Sigons shield with +1 skills, I was just blown away by how powerful it seemed to me and how hyped I was to use it on my low level necromancer at that time.
Fast forward many months later when I’m not a noob anymore and it was still really enjoyable finding great items because they were frankly quite rare, but also quite impactful and useful it just felt like finding that lost treasure, then realizing just like real life treasure hunters, well you’re gonna find some golden chalice in some ancient dig site, but you’re not gonna USE it, rather it’s just a valuable, rare and awe inspiring item, that you either put on display or sell to the guy who has been dreaming of it for his whole life.
I love finding treasure that has value to people because of it’s rarity, treasure that reflects how much time I spent trying to find it, and treasure that I can then either add to my trophy case of “I can’t believe I found this” or sell to people that just really need it. I also love the idea of creating my own personal list of unobtainable dream treasures and once someone else uncovers it, being ready because I accrued so much wealth from my own treasure hunting that I can get it from them, and if I do I’m lucky, and if I’m on my game I might get a good deal while I’m at it.
I just love accumulating WEALTH in the process of treasure hunting. I don’t at ALL care about just finding slight statistical upgrades to my character. What I care about is finding really cool rare items that I know are valuable, and turning them into a pile of wealth that I can watch grow like scrooge mcduck and cackle to myself in joy. It’s just friggin fun man, it’s motivating, and it births FOREVER end game grindability for games like this where otherwise you just capped out your own gear and now who cares what else you find, because you can’t trade it.
This is why trading is the lifeblood of D2 and PoE, and why I’m glad they are making more steps towards that direction in D4.