MUDs still have an edge over graphical games in some ways. Social interaction is a big one.

If I go on WoW and I interact with other people, I pick from a bunch of predefined actions. The same is true of any graphical game. With stuff like say, emotes and so on, literally the exact thing I type is input into the MUD*. People can interpret that imagery in their brains however they like. The same with areas and exploration. My idea of somewhere like Organia, and yours (if we explored it together) are highly personalized. That's the beauty of text over graphics. The issue is that market trends seem to have moved against MUDs, which is to be expected. We are talking about a steam engine when companies are considering 100% electric engines, or hydrogen fuel cells.

Market tastes have deviated from text-heavy into graphical in general. So despite what we might reel off as benefits of MUDs, we need to focus on the reality of modern market tastes.

Either we identify niches where MUD playing would be accepted or (more difficult, I know) we need to convince the conventional market that MUDs still have their charm. In that sense we would need to distinguish ourselves from a graphic game, and sell/convince people that there is merit in it.

*Part of the reason why:
-Herald is important, even though a lot of Vets don't enjoy it.
-Immteraction is a good thing for the game (regardless of Imm Xp).