When first heard the term "Massively Multiplayer Online RPG" I thought, "sweet that would totally be worth the money if it were a persistent fantasy world that you could actually change in ways that other people can see through your own actions!"
Instead we got Everquest and WoW* which may as well be Diablo with a boosted multiplayer aspect, and the only example of my dream game is EVE online which I like well-enough to subscribe to off and on but in some ways it is a horribly painful game only made fun by the people I play it with.
As a college student $15 a month is actually a really tough sell for me, I just can't justify it for a game that doesn't seem to offer anything "special" that I can't get from a lower price bracket product, like Diablo, that is also more fun due to not having press-skill-and-wait combat to compensate for lag.
*I hear WoW hits its stride after level 20, but I always found the pre-20 gameplay to be suicidally terrible and never got to 20 in a 10-day trial. In fact, you might even say, quite accurately, that I quit
two WoW trials before they expired. Sometimes I would just look around at everyone doing the exact same quest I was and think "what the fuck immersion, what the fuck."