roofles, what you mentioned about text adventures works both ways. Compare MMO's to MUDs. The graphical orgasmic pleasure (or whatever) of Everquest of WoW is great, if you're into that. The problem therein lies with the player's ideas of what's what. Imagination is the key, so to speak. In a MUD, I can imagine and re-create any character I want, and it'll come across that way. In an MMO, I'm trapped by set boundaries and guidelines with character creation. With an MMO, if my Level 32 Knight looks exactly the same as another Knight, well, what can I do?
As for plain ol' single player text adventures, well, you're spot on
That's why they stopped being cool when graphics started