I think the world of this scene and the people in it, including everyone here. There is nothing little about all the work that goes on here and there is absolutely nothing little about the people making these games.
XBoxes are in a lot of houses now. To say that none of them would enjoy a roguelike is missing out on a new fanbase. It doesn't have to mean big commercial sell out time. Again, look at Dungeon Adventure, and the upcoming Ascii Quest. "Commercial success" is a changing term. You're right that in the 80s it meant a full priced game like Dungeon Hack or something. But now a small group of indies, or even one person, can put a game on XBox live for a dollar. That feeling you had when you played Nethack or Rogue or whichever one it was for the first time, that can now reach a whole new group of people, and it doesn't take a huge team and a 60 dollar game.
I promise you, Krice, that there are people-- kids too-- who would really enjoy roguelikes but just don't know about them. It's not about pc / console / windows / linux, it's about that player with a bigass smile on his face because he just made it out of a wicked fight, or the kid pounding his forehead because he made a dumb mistake and got eaten on the 18th floor of the last dungeon.