PvP in a MMORPG = dumb. You wanna pay $13 a month to kill another player in a virtual manner? Especially in a poorly thought out and unbalanced manner. Then you're a sucker and you're being ripped off. The first-person shooters make you sick with vertigo, do they?
Companies that have this brainless idea that people want a PvP MMORPG have no clue. Look at the MMORPG's in existence. They're engineered, for the most part, toward teaming and social goal-setting. Even the Ubermeister of all PvP MMORPG's, UO, bowed to reality and made their game pro-PvE (or pro-tradeskill).
Shadowbane is doomed to fail 'cos of this idea.
It's quite simple. There are a plethora of FPS's out there that'll give you all the giggles you can have. Most of them have well made and diversified methods to waste your opponent and provide endless hours of after-work catharsis.
More importantly, they give you this all for the price of the game itself and your ISP. AO and other "red" MMORPG's, can't give you that. You're paying above and beyond for something that is sorely lacking in execution.