The problem IMO is D3 doesn't have the strong itemization system required to accommodate a robust item economy. I think most people agree D3's fundamental Primary Stat system is shallow by design. Hence, D3 was designed to be more of a fun arcade/combat RPG.
Have you checked out the loot 2.0 changes?
While I agree it's still far from ideal - they've made a lot of strong changes to legendaries and set items, to make them stand apart and be highly desirable.
D3 was designed by someone who's resigned from the job, so it's not really the same game anymore.
It was never intended to be purely short-term, though, they just didn't really understand the genre.
Path of Exile, on the other hand, has the most robust item system ever, better than Diablo 2 (level 90 Duelist here). So in a way, it is nice to have D3X going more arcade with a focus on fun gameplay. This creates a nice contrast with PoE, which is clearly the uber-hardcore 5,000 hour players' dream come true.
Well, the issue with PoE is that combat isn't exciting enough and especially the SEVERE lack of asset variation makes for a game that's excessively samey in terms of the overall experience.
Oh, the passive skill tree is great - even if it's deceptively strategic. It's the opposite of streamlined design. It's deliberately obscure and the challenge easily becomes the actual decoding of the tree - even if you know exactly what you want.
I'm not convinced that was such a great idea.
If you make a direct comparison between Diablo 3 and PoE - and you look at combat and active skills, PoE doesn't stand a chance.
But PoE does have a much more interesting character system and the skill gems are wonderful. It's just really sad that the areas look and feel so similar, and that combat can't really go beyond the limited animations they've created. They need at least 2-3 more acts to spice things up.
Diablo 3 with a high-level character feels so, SO good - and the amount of asset variation is on another level entirely. That's why a long-term feature like the RMAH would fit so well with it.
So I understand some players loved trading, but I still maintain that the majority of players just want to have fun and find their own items in D3. But I haven't played the expansion, so I can't say if it is good or not.
Well, everyone wants a fun game to last for as long as possible. I don't think anyone wants the fun to end sooner rather than later.
Trading with other people is part of the social dynamic.
To me, the social dynamic makes the game feel more relevant and your actions more far-reaching.
I can't really enjoy games like this without some kind of social interaction - as the meaninglessness of the eternal loot hunt becomes obvious too soon.
I admit I just don't understand why people love trading so much…to me it is a big headache to price your gear, find people, ensure you aren't being ripped off, trying to get "good" deals…it is way too much like using Craigslist IMO. The AH "solved" all that…but nobody I knew enjoyed the AH…except in the sense of real money profit enjoyment.
That's fair enough, though I'm surprised it's so hard to understand.
It's an added feature that gives the game long-term perspective, especially with the RMAH - where you could potentially make a decent profit from selling items.
That made the loot hunt much more entertaining, because even if your character couldn't use what you found - you could still sell it.
The original problem was how they balanced it and how awful the itemization was - not the auction house itself.