The Vault of Glass was a masterpiece in that it gave players something to go back for time and time again. It offered exploration and mystery (where is that 1 last chest, or does it even exist??). Do you want to go this way - or go that way to get the extra chest? Think of all the exploration that people did. I even remember seeing a video where someone figured out how to go backwards through the rooms and end up back at the top entrance. There were a lot of extra things to do - just because of the design of it. Heck even later in D1's life - "can we really kill a gorgon? - cool lets go" The Vault is just one example - there are many different things in D1 that were mysteries that had to be solved by the community. Now my rant - What in D2 has this type of exploration/mystery designed in it? Maybe you could say the underbelly of the Leviathan (but I have a map, and guess what, I think it's complete) In my opinion this is one of the key reasons that people are bored, and complaining about D2 - there needs to be more mystery in the design - things for us to speculate about, and things to try to figure out. There is no reason to explore new area's (hidden ghosts anyone?). There are no mystery levels to acquire a new fancy exotic (black spindle anyone?) So what do you think?