Oh wow. So now atmosphere is all that matters in a game.
Actually it matters a lot.
A lot more than story in fact - having a story or good story is not strictly a requirement in game, but *some* atmosphere is inevitable and happens to permeate the entire game.
If we accept that PS:T was great thanks to the story alone, we have to accept that games exist that were made great thanks to their atmosphere and little else.
Diablo is not a game, it's a clickfest. Diablo is barely above something like bejeweled as far as interesting gameplay mechanics go. If I wanted to play something that is centered on action I'd play something a little more involved than click-to-win&grind.
Sorry, but you're being completely wrong here.
First, Diablo (I'm speaking of D1, of course) doesn't involve grind. It's a game with finite number of enemies and thus a finite XP and potential drop pool. It's physically impossible to grind in D1.
Second, Diablo isn't click to win. Sure, if you rerun the game with already powerful character it will be boring clickfest, but on your first playthrough you will need at least some modicum of thought to survive. There are unique monsters that hit hard and have entourage of buffed normals, there are wide open rooms with tons of ranged attackers, there is Butcher, there are those horned fucks, there may be whole levels of ranged elemental attackers latter on (often without any worthwhile %resist items dropping in that game), there are heavy hitters, and there is pattern of walls, doors, and unpassable terrain to use to your advantage.
Diablo may be guilty of dumbing down and most shit plaguing modern cRPGs including potion spam, Diablo is hardly a sophisticated game, but you can't just click your way to victory in it as death is very easy.
Now Diablo 2 fit's your description like a glove. It has grind thanks to lack of persistency and ability to do raids, it has victory via many clicks, as relative threat posed by mobs is much lower and so on.
Never touched the thing, though I did play 1 and 2. However, a purchase for Diablo 3 gives indirect support to ridiculous levels of DRM. This is the same reason why I am not big on Steam. We're running into an era where companies believe they have a right to put extra software unto my computer and monitor my activities while I'm online just so I can play their games (yes, I am aware I can go offline with Steam). When you purchase Diablo 3 you really haven't purchased a game. You have purchased software that can only be played at the whim of Blizzard, and if Blizzard's servers are down you can't game. Which means that in a manner Blizzard still retains a level of ownership despite you handing them money. Nothing good will come of this.
This.
At least with steam you can pretty much stay in offline mode indefinitely as long as you're not installing/updating shit.